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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 2 |
| 6 | 6 |
| 7 | 4 |
| 8 | 11 |
| 9 | 8 |
| 10 | 18 |
| 11 | 13 |
| 12 | 33 |
| 13 | 22 |
| 14 | 49 |
| 15 | 38 |
| 16 | 79 |
| 17 | 58 |
| 18 | 122 |
| 19 | 90 |
| 20 | 186 |
| 21 | 139 |
| 22 | 268 |
| 23 | 206 |
| 24 | 402 |
| 25 | 304 |
| 26 | 569 |
| 27 | 448 |
| 28 | 817 |
| 29 | 636 |
| 30 | 1152 |
| 31 | 907 |
| 32 | 1612 |
| 33 | 1283 |
| 34 | 2220 |
| 35 | 1791 |
| 36 | 3071 |
| 37 | 2468 |
| 38 | 4162 |
| 39 | 3409 |
| 40 | 5655 |
| 41 | 4634 |
| 42 | 7597 |
| 43 | 6283 |
| 44 | 10171 |
| 45 | 8478 |
| 46 | 13491 |
| 47 | 11336 |
| 48 | 17906 |
| 49 | 15088 |
| 50 | 23513 |
| 51 | 20012 |
[1,0,1,1,3,2,6,4,11,8,18,13,33,22,49,38,79,58,122, 90,186,139,268,206,402,304,569,448,817,636,1152, 907,1612,1283,2220,1791,3071,2468,4162,3409,5655, 4634,7597,6283,10171,8478,13491,11336,17906,15088, 23513,20012] |