26 June 2023

• curprev 15:3615:36, 26 June 2023 Impromptua talk contribs m 6,243 bytes +4 →Solution 1

25 June 2019

• curprev 19:5119:51, 25 June 2019 Blossomstream talk contribs m 6,239 bytes +5 →Solution 1

12 June 2019

• curprev 17:2017:20, 12 June 2019 Arieoreos talk contribs m 6,234 bytes +12 →Solution 1
• curprev 17:1917:19, 12 June 2019 Arieoreos talk contribs 6,222 bytes −76 →Solution 1
• curprev 17:1817:18, 12 June 2019 Arieoreos talk contribs 6,298 bytes +2,780 →Solutions

24 February 2019

• curprev 09:4609:46, 24 February 2019 Invoker talk contribs m 3,518 bytes +12 →Solution 1
• curprev 09:4409:44, 24 February 2019 Invoker talk contribs 3,506 bytes +38 No edit summary

23 February 2019

• curprev 18:4718:47, 23 February 2019 Invoker talk contribs 3,468 bytes +10 No edit summary
• curprev 18:4118:41, 23 February 2019 Invoker talk contribs 3,458 bytes +1,956 No edit summary

18 January 2014

• curprev 12:3412:34, 18 January 2014 Happiface talk contribs m 1,502 bytes −1 fixing bad LaTeX
• curprev 12:3412:34, 18 January 2014 Happiface talk contribs 1,503 bytes +4 →Solution

3 July 2013

• curprev 17:1017:10, 3 July 2013 Tenniskidperson3 talk contribs 1,499 bytes +15 No edit summary

2 January 2013

• curprev 15:2915:29, 2 January 2013 Baijiangchen talk contribs 1,484 bytes +31 →Alternate, formal argument

9 July 2012

• curprev 00:1500:15, 9 July 2012 DVA6102 talk contribs m 1,453 bytes +154 →Solution

28 April 2012

• curprev 10:4310:43, 28 April 2012 Va2010 talk contribs 1,299 bytes +25 →Solution
• curprev 10:1710:17, 28 April 2012 Va2010 talk contribs 1,274 bytes +307 →Solution
• curprev 10:1210:12, 28 April 2012 Va2010 talk contribs 967 bytes +352 →Solution

25 April 2012

• curprev 17:0317:03, 25 April 2012 Nsato talk contribs 615 bytes +615 Created page with "== Problem == For distinct positive integers <math>a</math>, <math>b < 2012</math>, define <math>f(a,b)</math> to be the number of integers <math>k</math> with <math>1 \le k < 2..."