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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 6 |
| 9 | 7 |
| 10 | 12 |
| 11 | 16 |
| 12 | 25 |
| 13 | 32 |
| 14 | 46 |
| 15 | 61 |
| 16 | 86 |
| 17 | 110 |
| 18 | 149 |
| 19 | 192 |
| 20 | 257 |
| 21 | 326 |
| 22 | 425 |
| 23 | 538 |
| 24 | 694 |
| 25 | 871 |
| 26 | 1107 |
| 27 | 1381 |
| 28 | 1740 |
| 29 | 2154 |
| 30 | 2689 |
| 31 | 3313 |
| 32 | 4103 |
| 33 | 5024 |
| 34 | 6176 |
| 35 | 7529 |
| 36 | 9201 |
| 37 | 11157 |
| 38 | 13554 |
| 39 | 16365 |
| 40 | 19784 |
| 41 | 23782 |
| 42 | 28610 |
| 43 | 34260 |
| 44 | 41039 |
| 45 | 48958 |
| 46 | 58405 |
| 47 | 69431 |
| 48 | 82525 |
| 49 | 97775 |
[0,0,0,1,1,2,3,6,7,12,16,25,32,46,61,86,110,149, 192,257,326,425,538,694,871,1107,1381,1740,2154, 2689,3313,4103,5024,6176,7529,9201,11157,13554, 16365,19784,23782,28610,34260,41039,48958,58405, 69431,82525,97775] |