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- 17:10, 4 July 2014 (diff | hist) . . (+61)‎ . . Folklore ‎ (Minor edit about triangular numbers as combinations.)
- 06:28, 4 July 2014 (diff | hist) . . (+28)‎ . . Skimming Stones ‎
- 03:05, 4 July 2014 (diff | hist) . . (+138)‎ . . Folklore ‎ (Added a combinatorics tidbit about triangular numbers.)
- 03:00, 4 July 2014 (diff | hist) . . (+620)‎ . . Folklore ‎ (Added some info about plain (cornered) hexagonal numbers and their relation to triangular #'s and centered hexagonal #'s. Also made some corrections regarding triangular #'s.)