A271020 Magic sums of 3 X 3 semimagic squares of triangular numbers whose rows, columns, and at least one of the two main diagonals sum to the same number.
49288842, 62620221, 116153046, 128221941, 132479727, 443599581, 563581992, 750128651, 1045377417, 1153997472, 1192317546, 1232221059, 1565505534, 1881096741, 2192812511, 2415153276, 2903826159, 3068390847, 3205548534, 3311993184, 3647394275, 3992396232
Offset: 1
Keywords
Links
- Arkadiusz Wesolowski, Examples of these semimagic squares
- Index entries for sequences related to magic squares