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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 9 |
| 2 | 51 |
| 3 | 166 |
| 4 | 410 |
| 5 | 855 |
| 6 | 1589 |
| 7 | 2716 |
| 8 | 4356 |
| 9 | 6645 |
| 10 | 9735 |
| 11 | 13794 |
| 12 | 19006 |
| 13 | 25571 |
| 14 | 33705 |
| 15 | 43640 |
| 16 | 55624 |
| 17 | 69921 |
| 18 | 86811 |
| 19 | 106590 |
| 20 | 129570 |
| 21 | 156079 |
| 22 | 186461 |
| 23 | 221076 |
| 24 | 260300 |
| 25 | 304525 |
| 26 | 354159 |
| 27 | 409626 |
| 28 | 471366 |
| 29 | 539835 |
| 30 | 615505 |
| 31 | 698864 |
| 32 | 790416 |
| 33 | 890681 |
| 34 | 1000195 |
| 35 | 1119510 |
| 36 | 1249194 |
| 37 | 1389831 |
[0,9,51,166,410,855,1589,2716,4356,6645,9735, 13794,19006,25571,33705,43640,55624,69921,86811, 106590,129570,156079,186461,221076,260300,304525, 354159,409626,471366,539835,615505,698864,790416, 890681,1000195,1119510,1249194,1389831] |