11 January 2019

• curprev 11:5311:53, 11 January 2019 Hashtagmath talk contribs m 1,830 bytes −18 →Solution

5 December 2016

• curprev 00:0600:06, 5 December 2016 Pooh bear talk contribs 1,848 bytes +1,258 No edit summary

26 November 2016

• curprev 14:3014:30, 26 November 2016 Mathisfun04 talk contribs 590 bytes +13 →Solution

19 October 2014

• curprev 21:5221:52, 19 October 2014 Timneh talk contribs 577 bytes +577 Created page with "== Problem == Determine the number of <math>3 \times 3</math> square arrays whose row and column sums are equal to <math>2</math>, using <math>0, 1, 2</math> as entries. Entries..."