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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 8 |
| 4 | 19 |
| 5 | 40 |
| 6 | 77 |
| 7 | 132 |
| 8 | 217 |
| 9 | 340 |
| 10 | 510 |
| 11 | 742 |
| 12 | 1054 |
| 13 | 1456 |
| 14 | 1976 |
| 15 | 2634 |
| 16 | 3453 |
| 17 | 4464 |
| 18 | 5703 |
| 19 | 7194 |
| 20 | 8987 |
| 21 | 11120 |
| 22 | 13636 |
| 23 | 16588 |
| 24 | 20036 |
| 25 | 24024 |
| 26 | 28630 |
| 27 | 33916 |
| 28 | 39951 |
| 29 | 46816 |
| 30 | 54601 |
| 31 | 63376 |
| 32 | 73253 |
| 33 | 84324 |
| 34 | 96690 |
| 35 | 110466 |
| 36 | 125778 |
| 37 | 142728 |
| 38 | 161468 |
| 39 | 182126 |
| 40 | 204841 |
| 41 | 229768 |
| 42 | 257075 |
| 43 | 286902 |
| 44 | 319447 |
| 45 | 354880 |
| 46 | 393384 |
[0,2,8,19,40,77,132,217,340,510,742,1054,1456, 1976,2634,3453,4464,5703,7194,8987,11120,13636, 16588,20036,24024,28630,33916,39951,46816,54601, 63376,73253,84324,96690,110466,125778,142728, 161468,182126,204841,229768,257075,286902,319447, 354880,393384] |