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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 6 |
| 4 | 20 |
| 5 | 58 |
| 6 | 124 |
| 7 | 244 |
| 8 | 424 |
| 9 | 700 |
| 10 | 1080 |
| 11 | 1610 |
| 12 | 2300 |
| 13 | 3206 |
| 14 | 4340 |
| 15 | 5768 |
| 16 | 7504 |
| 17 | 9624 |
| 18 | 12144 |
| 19 | 15150 |
| 20 | 18660 |
| 21 | 22770 |
| 22 | 27500 |
| 23 | 32956 |
| 24 | 39160 |
| 25 | 46228 |
| 26 | 54184 |
| 27 | 63154 |
| 28 | 73164 |
| 29 | 84350 |
| 30 | 96740 |
| 31 | 110480 |
| 32 | 125600 |
| 33 | 142256 |
| 34 | 160480 |
| 35 | 180438 |
| 36 | 202164 |
| 37 | 225834 |
[0,0,0,6,20,58,124,244,424,700,1080,1610,2300, 3206,4340,5768,7504,9624,12144,15150,18660,22770, 27500,32956,39160,46228,54184,63154,73164,84350, 96740,110480,125600,142256,160480,180438,202164, 225834] |