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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 4 |
| 3 | 13 |
| 4 | 17 |
| 5 | 52 |
| 6 | 69 |
| 7 | 203 |
| 8 | 272 |
| 9 | 781 |
| 10 | 1053 |
| 11 | 2976 |
| 12 | 4029 |
| 13 | 11267 |
| 14 | 15296 |
| 15 | 42469 |
| 16 | 57765 |
| 17 | 159596 |
| 18 | 217361 |
| 19 | 598499 |
| 20 | 815860 |
| 21 | 2241165 |
| 22 | 3057025 |
| 23 | 8383872 |
| 24 | 11440897 |
| 25 | 31340691 |
| 26 | 42781588 |
| 27 | 117100285 |
| 28 | 159881873 |
| 29 | 437378260 |
| 30 | 597260133 |
| 31 | 1633244795 |
| 32 | 2230504928 |
| 33 | 6097779229 |
[1,3,4,13,17,52,69,203,272,781,1053,2976,4029, 11267,15296,42469,57765,159596,217361,598499, 815860,2241165,3057025,8383872,11440897,31340691, 42781588,117100285,159881873,437378260,597260133, 1633244795,2230504928,6097779229] |