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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 9 |
| 6 | 18 |
| 7 | 26 |
| 8 | 79 |
| 9 | 139 |
| 10 | 219 |
| 11 | 248 |
| 12 | 657 |
| 13 | 1505 |
| 14 | 11246 |
| 15 | 19999 |
| 16 | 62608 |
| 17 | 368172 |
| 18 | 553598 |
| 19 | 646926 |
| 20 | 1241426 |
| 21 | 1562457 |
| 22 | 1568558 |
| 23 | 5098990 |
| 24 | 7889727 |
| 25 | 12866334 |
| 26 | 18941415 |
| 27 | 24647857 |
| 28 | 25355582 |
| 29 | 25869571 |
| 30 | 26114278 |
| 31 | 40784906 |
| 32 | 46699276 |
| 33 | 53532458 |
| 34 | 113309714 |
| 35 | 230702738 |
| 36 | 290702470 |
[1,2,4,7,9,18,26,79,139,219,248,657,1505,11246, 19999,62608,368172,553598,646926,1241426,1562457, 1568558,5098990,7889727,12866334,18941415, 24647857,25355582,25869571,26114278,40784906, 46699276,53532458,113309714,230702738,290702470] |