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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 1 |
| 11 | 2 |
| 12 | 3 |
| 13 | 4 |
| 14 | 5 |
| 15 | 6 |
| 16 | 7 |
| 17 | 8 |
| 18 | 9 |
| 19 | 10 |
| 20 | 11 |
| 21 | 23 |
| 22 | 46 |
| 23 | 89 |
| 24 | 168 |
| 25 | 311 |
| 26 | 566 |
| 27 | 1013 |
| 28 | 1780 |
| 29 | 3059 |
| 30 | 5106 |
| 31 | 13283 |
| 32 | 31683 |
| 33 | 71545 |
| 34 | 155833 |
| 35 | 331139 |
| 36 | 691387 |
| 37 | 1424525 |
| 38 | 2902605 |
| 39 | 5848135 |
| 40 | 11610871 |
| 41 | 34108236 |
| 42 | 95170569 |
| 43 | 254432006 |
| 44 | 657159051 |
| 45 | 1650540916 |
[1,1,1,1,1,1,1,1,1,1,1,2,3,4,5,6,7,8,9,10,11,23, 46,89,168,311,566,1013,1780,3059,5106,13283,31683, 71545,155833,331139,691387,1424525,2902605, 5848135,11610871,34108236,95170569,254432006, 657159051,1650540916] |