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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 4 |
| 7 | 5 |
| 8 | 9 |
| 9 | 15 |
| 10 | 21 |
| 11 | 28 |
| 12 | 46 |
| 13 | 56 |
| 14 | 80 |
| 15 | 114 |
| 16 | 149 |
| 17 | 192 |
| 18 | 269 |
| 19 | 337 |
| 20 | 455 |
| 21 | 584 |
| 22 | 751 |
| 23 | 943 |
| 24 | 1234 |
| 25 | 1527 |
| 26 | 1944 |
| 27 | 2422 |
| 28 | 3042 |
| 29 | 3739 |
| 30 | 4699 |
| 31 | 5722 |
| 32 | 7100 |
| 33 | 8668 |
| 34 | 10634 |
| 35 | 12880 |
| 36 | 15790 |
| 37 | 19012 |
| 38 | 23093 |
| 39 | 27776 |
| 40 | 33528 |
| 41 | 40102 |
| 42 | 48264 |
| 43 | 57469 |
| 44 | 68793 |
| 45 | 81727 |
| 46 | 97372 |
| 47 | 115227 |
[0,0,0,1,1,2,4,5,9,15,21,28,46,56,80,114,149,192, 269,337,455,584,751,943,1234,1527,1944,2422,3042, 3739,4699,5722,7100,8668,10634,12880,15790,19012, 23093,27776,33528,40102,48264,57469,68793,81727, 97372,115227] |