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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 15 |
| 5 | 26 |
| 6 | 44 |
| 7 | 72 |
| 8 | 114 |
| 9 | 178 |
| 10 | 272 |
| 11 | 408 |
| 12 | 605 |
| 13 | 884 |
| 14 | 1276 |
| 15 | 1824 |
| 16 | 2580 |
| 17 | 3616 |
| 18 | 5028 |
| 19 | 6936 |
| 20 | 9498 |
| 21 | 12922 |
| 22 | 17468 |
| 23 | 23472 |
| 24 | 31369 |
| 25 | 41700 |
| 26 | 55156 |
| 27 | 72616 |
| 28 | 95172 |
| 29 | 124202 |
| 30 | 161436 |
| 31 | 209016 |
| 32 | 269616 |
| 33 | 346562 |
| 34 | 443952 |
| 35 | 566856 |
| 36 | 721530 |
| 37 | 915642 |
| 38 | 1158608 |
| 39 | 1461968 |
| 40 | 1839789 |
[1,2,4,8,15,26,44,72,114,178,272,408,605,884,1276, 1824,2580,3616,5028,6936,9498,12922,17468,23472, 31369,41700,55156,72616,95172,124202,161436, 209016,269616,346562,443952,566856,721530,915642, 1158608,1461968,1839789] |