User contributions for 80.116.176.45
16 February 2011
- 23:1323:13, 16 February 2011 diff hist +8 Spiral matrix →{{header|D}}
- 23:1223:12, 16 February 2011 diff hist −302 Spiral matrix →{{header|D}}
- 22:4622:46, 16 February 2011 diff hist +81 Spiral matrix →{{header|D}}
- 21:5721:57, 16 February 2011 diff hist +159 Catalan numbers →{{header|D}}