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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 4 |
| 6 | 12 |
| 7 | 28 |
| 8 | 57 |
| 9 | 104 |
| 10 | 173 |
| 11 | 273 |
| 12 | 409 |
| 13 | 591 |
| 14 | 828 |
| 15 | 1129 |
| 16 | 1506 |
| 17 | 1969 |
| 18 | 2532 |
| 19 | 3207 |
| 20 | 4009 |
| 21 | 4953 |
| 22 | 6053 |
| 23 | 7328 |
| 24 | 8793 |
| 25 | 10468 |
| 26 | 12372 |
| 27 | 14524 |
| 28 | 16944 |
| 29 | 19656 |
| 30 | 22680 |
| 31 | 26040 |
| 32 | 29760 |
| 33 | 33864 |
| 34 | 38380 |
| 35 | 43332 |
| 36 | 48748 |
| 37 | 54657 |
| 38 | 61088 |
| 39 | 68069 |
| 40 | 75633 |
| 41 | 83809 |
| 42 | 92631 |
| 43 | 102132 |
| 44 | 112345 |
| 45 | 123306 |
| 46 | 135049 |
| 47 | 147612 |
| 48 | 161031 |
| 49 | 175345 |
[0,0,0,0,0,4,12,28,57,104,173,273,409,591,828, 1129,1506,1969,2532,3207,4009,4953,6053,7328,8793, 10468,12372,14524,16944,19656,22680,26040,29760, 33864,38380,43332,48748,54657,61088,68069,75633, 83809,92631,102132,112345,123306,135049,147612, 161031,175345] |