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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 5 |
| 8 | 5 |
| 9 | 12 |
| 10 | 18 |
| 11 | 30 |
| 12 | 36 |
| 13 | 65 |
| 14 | 83 |
| 15 | 120 |
| 16 | 159 |
| 17 | 225 |
| 18 | 284 |
| 19 | 395 |
| 20 | 495 |
| 21 | 665 |
| 22 | 848 |
| 23 | 1094 |
| 24 | 1348 |
| 25 | 1757 |
| 26 | 2184 |
| 27 | 2746 |
| 28 | 3399 |
| 29 | 4250 |
| 30 | 5199 |
| 31 | 6469 |
| 32 | 7867 |
| 33 | 9667 |
| 34 | 11756 |
| 35 | 14310 |
| 36 | 17266 |
| 37 | 20988 |
| 38 | 25216 |
| 39 | 30372 |
| 40 | 36371 |
| 41 | 43648 |
| 42 | 52041 |
| 43 | 62187 |
| 44 | 73866 |
| 45 | 87837 |
| 46 | 104105 |
| 47 | 123279 |
| 48 | 145453 |
[0,0,0,0,1,1,5,5,12,18,30,36,65,83,120,159,225, 284,395,495,665,848,1094,1348,1757,2184,2746,3399, 4250,5199,6469,7867,9667,11756,14310,17266,20988, 25216,30372,36371,43648,52041,62187,73866,87837, 104105,123279,145453] |