| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 8 |
| 4 | 21 |
| 5 | 49 |
| 6 | 93 |
| 7 | 171 |
| 8 | 278 |
| 9 | 446 |
| 10 | 660 |
| 11 | 970 |
| 12 | 1347 |
| 13 | 1863 |
| 14 | 2471 |
| 15 | 3269 |
| 16 | 4188 |
| 17 | 5356 |
| 18 | 6678 |
| 19 | 8316 |
| 20 | 10145 |
| 21 | 12365 |
| 22 | 14817 |
| 23 | 17743 |
| 24 | 20946 |
| 25 | 24714 |
| 26 | 28808 |
| 27 | 33566 |
| 28 | 38703 |
| 29 | 44611 |
| 30 | 50955 |
| 31 | 58185 |
| 32 | 65912 |
| 33 | 74648 |
| 34 | 83946 |
| 35 | 94384 |
| 36 | 105453 |
| 37 | 117801 |
| 38 | 130853 |
| 39 | 145331 |
| 40 | 160590 |
| 41 | 177430 |
| 42 | 195132 |
[0,2,8,21,49,93,171,278,446,660,970,1347,1863, 2471,3269,4188,5356,6678,8316,10145,12365,14817, 17743,20946,24714,28808,33566,38703,44611,50955, 58185,65912,74648,83946,94384,105453,117801, 130853,145331,160590,177430,195132] |