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A051875 as a simple table
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 23 |
| 3 | 66 |
| 4 | 130 |
| 5 | 215 |
| 6 | 321 |
| 7 | 448 |
| 8 | 596 |
| 9 | 765 |
| 10 | 955 |
| 11 | 1166 |
| 12 | 1398 |
| 13 | 1651 |
| 14 | 1925 |
| 15 | 2220 |
| 16 | 2536 |
| 17 | 2873 |
| 18 | 3231 |
| 19 | 3610 |
| 20 | 4010 |
| 21 | 4431 |
| 22 | 4873 |
| 23 | 5336 |
| 24 | 5820 |
| 25 | 6325 |
| 26 | 6851 |
| 27 | 7398 |
| 28 | 7966 |
| 29 | 8555 |
| 30 | 9165 |
| 31 | 9796 |
| 32 | 10448 |
| 33 | 11121 |
| 34 | 11815 |
| 35 | 12530 |
| 36 | 13266 |
| 37 | 14023 |
| 38 | 14801 |
| 39 | 15600 |
[0,1,23,66,130,215,321,448,596,765,955,1166,1398, 1651,1925,2220,2536,2873,3231,3610,4010,4431,4873, 5336,5820,6325,6851,7398,7966,8555,9165,9796, 10448,11121,11815,12530,13266,14023,14801,15600] |