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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 4 |
| 7 | 7 |
| 8 | 10 |
| 9 | 22 |
| 10 | 43 |
| 11 | 202 |
| 12 | 370 |
| 13 | 547 |
| 14 | 1264 |
| 15 | 2521 |
| 16 | 11881 |
| 17 | 21781 |
| 18 | 32221 |
| 19 | 74521 |
| 20 | 148681 |
| 21 | 700744 |
| 22 | 1284667 |
| 23 | 1900450 |
| 24 | 4395442 |
| 25 | 8769643 |
| 26 | 41331982 |
| 27 | 75773530 |
| 28 | 112094287 |
| 29 | 259256524 |
| 30 | 517260241 |
| 31 | 2437886161 |
| 32 | 4469353561 |
| 33 | 6611662441 |
| 34 | 15291739441 |
| 35 | 30509584561 |
[1,1,1,1,1,1,4,7,10,22,43,202,370,547,1264,2521, 11881,21781,32221,74521,148681,700744,1284667, 1900450,4395442,8769643,41331982,75773530, 112094287,259256524,517260241,2437886161, 4469353561,6611662441,15291739441,30509584561] |