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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 6 |
| 4 | 15 |
| 5 | 32 |
| 6 | 61 |
| 7 | 110 |
| 8 | 191 |
| 9 | 324 |
| 10 | 541 |
| 11 | 894 |
| 12 | 1467 |
| 13 | 2396 |
| 14 | 3901 |
| 15 | 6338 |
| 16 | 10283 |
| 17 | 16668 |
| 18 | 27001 |
| 19 | 43722 |
| 20 | 70779 |
| 21 | 114560 |
| 22 | 185401 |
| 23 | 300026 |
| 24 | 485495 |
| 25 | 785592 |
| 26 | 1271161 |
| 27 | 2056830 |
| 28 | 3328071 |
| 29 | 5384984 |
| 30 | 8713141 |
| 31 | 14098214 |
| 32 | 22811447 |
| 33 | 36909756 |
| 34 | 59721301 |
| 35 | 96631158 |
[0,1,6,15,32,61,110,191,324,541,894,1467,2396, 3901,6338,10283,16668,27001,43722,70779,114560, 185401,300026,485495,785592,1271161,2056830, 3328071,5384984,8713141,14098214,22811447, 36909756,59721301,96631158] |