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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 2 |
| 8 | 3 |
| 9 | 4 |
| 10 | 5 |
| 11 | 12 |
| 12 | 11 |
| 13 | 21 |
| 14 | 27 |
| 15 | 37 |
| 16 | 49 |
| 17 | 71 |
| 18 | 87 |
| 19 | 124 |
| 20 | 153 |
| 21 | 204 |
| 22 | 260 |
| 23 | 344 |
| 24 | 421 |
| 25 | 550 |
| 26 | 685 |
| 27 | 867 |
| 28 | 1076 |
| 29 | 1360 |
| 30 | 1660 |
| 31 | 2081 |
| 32 | 2544 |
| 33 | 3145 |
| 34 | 3831 |
| 35 | 4706 |
| 36 | 5692 |
| 37 | 6958 |
| 38 | 8395 |
| 39 | 10171 |
| 40 | 12224 |
| 41 | 14761 |
| 42 | 17645 |
| 43 | 21204 |
| 44 | 25281 |
| 45 | 30207 |
| 46 | 35914 |
| 47 | 42760 |
| 48 | 50618 |
| 49 | 60057 |
| 50 | 70914 |
[0,0,0,0,0,1,0,2,3,4,5,12,11,21,27,37,49,71,87, 124,153,204,260,344,421,550,685,867,1076,1360, 1660,2081,2544,3145,3831,4706,5692,6958,8395, 10171,12224,14761,17645,21204,25281,30207,35914, 42760,50618,60057,70914] |