At the time of this writing, the first 20 powers of two are represented in Slashdot UIDs. Let's take a look at them. Here they are in numerical order:

• 2^0: CmdrTaco (1)
• 2^1: Hemos (2)
• 2^2: CowboyNeal (4)
• 2^3: Emmett Plant (8)
• 2^4: Tom Rothamel (16)
• 2^5: spidey (32)
• 2^6: No user
• 2^7: xyster (128)
• 2^8: gewrgiou (256)
• 2^9: No user
• 2^10: Hoag (1024)
• 2^11: Jim Cape (2048)
• 2^12: No user
• 2^13: ahmedmaden (8192)
• 2^14: Rick Miller (16384)
• 2^15: Claudius (32768)
• 2^16: databse jedi (65536)
• 2^17: pdamany (131072)
• 2^18: Coolassmike (262144)
• 2^19: vachun (524288)

Interesting notes:

• Three users are missing!
• The famous CowboyNeal gets the symmetric 2^2 UID.
• Nine of them have posted comments, but only three (CmdrTaco, Hemos, Tom Rothamel) have posted within the last year.
• Emmett Plant is also emmett (131645), a former Slashdot story author.

Slashdot account 858198 created:
  Thu Feb 10, 2005 11:08 EST

Slashdot account 852824 created:
  Mon Jan 24, 2005 11:30 EST

My last journal entry explored usernames for each single alphabet letter. Now let's take a look at the single digits. First, in numerical order:

• 0 (149258)
• 1 (84991)
• 2 (226117)
• 3 (134613)
• 5 (141907)
• 6 (22657)
• 8 (148170)
• 9 (166498)

And in UID order:

• 6 (22657)
• 1 (84991)
• 3 (134613)
• 5 (141907)
• 8 (148170)
• 0 (149258)
• 9 (166498)
• 2 (226117)

Interesting notes:

• No users named "4" or "7" (as of this writing).
• It took longer to get just these 8 digits used up than it did for all 26 letters of the alphabet.
• Even the first one-digit username came quite late to party, relative to the alphabet. By the time 6 showed up, 22 one-letter users had been created.
• 1's UID ends in a 1.
• 3's UID is a multiple of 3.
• 0's UID does not contain a 0, and 5's UID does not contain a 5. Each of the others UID does contain their digit.
• 6 is the only one that has posted a comment in the past year (actually 5 days ago, as of this writing), even though it was the first created.

It's not surprising that there is a username for each single alphabet letter. What is a bit surprising is how long it took to get there. I would have thought all the one-letter names would get snatched up quick, but it wasn't until UID 167483 that the last one was created. Here's the list, in alphabetical order:

• A (8698)
• B (14651)
• c (8461)
• d (4334)
• e (12832)
• F (19630)
• G (2545)
• h (59802)
• i (8254)
• j (2547)
• k (7946)
• l (10524)
• M (2160)
• n (36088)
• O (90420)
• p (7977)
• q (4977)
• r (13067)
• S (6235)
• t (8386)
• u (167483)
• V (10824)
• W (18328)
• X (1235)
• Y (13582)
• Z (20026)

And in UID order:

• X (1235)
• M (2160)
• G (2545)
• j (2547)
• d (4334)
• q (4977)
• S (6235)
• k (7946)
• p (7977)
• i (8254)
• t (8386)
• c (8461)
• A (8698)
• l (10524)
• V (10824)
• e (12832)
• r (13067)
• Y (13582)
• B (14651)
• W (18328)
• F (19630)
• Z (20026)
• n (36088)
• h (59802)
• O (90420)
• u (167483)

Some interesting (to me) notes:

• X missed it by just one to get UID 1234.
• d's UID is a palindrome.
• None of the alphabet usernames were created in the same position as they occur alphabetically.
• Twelve of the letters are uppercase, 14 are lowercase.
• B's, e's, h's, l's, n's, and Z's UIDs are all zipcodes.

Slashdot account 849405 created:
  Thu Jan 13, 2005 12:18 EST

Slashdot account 846999 created:
  Thu Jan 6, 2005 11:16 EST

Slashdot account 842409 created:
  Tue Dec 21, 2004 13:09 EST

Slashdot account 840303 created:
  Tue Dec 14, 2004 15:49 EST

Slashdot account 837081 created:
  Fri Dec 3, 2004 15:32 EST