25 May 2024

• curprev 01:2101:21, 25 May 2024 Anyu tsuruko talk contribs 3,642 bytes +1,836 No edit summary

20 November 2019

• curprev 13:2813:28, 20 November 2019 Luoji83 talk contribs m 1,806 bytes 0 →Solutions

18 July 2016

• curprev 18:1418:14, 18 July 2016 1=2 talk contribs m 1,806 bytes −3 →See Also
• curprev 18:1318:13, 18 July 2016 1=2 talk contribs m 1,809 bytes 0 →See also

3 July 2013

• curprev 19:4719:47, 3 July 2013 Etude talk contribs 1,809 bytes +15 No edit summary

13 January 2012

• curprev 15:1215:12, 13 January 2012 Tsh talk contribs 1,794 bytes −16 →Solutions
• curprev 15:1115:11, 13 January 2012 Tsh talk contribs 1,810 bytes +16 →Solutions

11 January 2008

• curprev 17:5017:50, 11 January 2008 Boy Soprano II talk contribs 1,794 bytes −615 reverted to original wording; removed induction from solution

21 October 2007

• curprev 13:5713:57, 21 October 2007 Temperal talk contribs 2,409 bytes +15 →See also: first question
• curprev 13:5613:56, 21 October 2007 Temperal talk contribs 2,394 bytes +10 →See also: first question
• curprev 13:5513:55, 21 October 2007 Temperal talk contribs 2,384 bytes +2,384 creation