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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 16 |
| 4 | 30 |
| 5 | 90 |
| 6 | 134 |
| 7 | 266 |
| 8 | 356 |
| 9 | 588 |
| 10 | 740 |
| 11 | 1100 |
| 12 | 1330 |
| 13 | 1846 |
| 14 | 2170 |
| 15 | 2870 |
| 16 | 3304 |
| 17 | 4216 |
| 18 | 4776 |
| 19 | 5928 |
| 20 | 6630 |
| 21 | 8050 |
| 22 | 8910 |
| 23 | 10626 |
| 24 | 11660 |
| 25 | 13700 |
| 26 | 14924 |
| 27 | 17316 |
| 28 | 18746 |
| 29 | 21518 |
| 30 | 23170 |
| 31 | 26350 |
| 32 | 28240 |
| 33 | 31856 |
| 34 | 34000 |
| 35 | 38080 |
| 36 | 40494 |
| 37 | 45066 |
| 38 | 47766 |
| 39 | 52858 |
| 40 | 55860 |
| 41 | 61500 |
| 42 | 64820 |
[0,0,16,30,90,134,266,356,588,740,1100,1330,1846, 2170,2870,3304,4216,4776,5928,6630,8050,8910, 10626,11660,13700,14924,17316,18746,21518,23170, 26350,28240,31856,34000,38080,40494,45066,47766, 52858,55860,61500,64820] |