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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 7 |
| 5 | 15 |
| 6 | 25 |
| 7 | 43 |
| 8 | 64 |
| 9 | 120 |
| 10 | 186 |
| 11 | 288 |
| 12 | 463 |
| 13 | 695 |
| 14 | 1105 |
| 15 | 1728 |
| 16 | 2525 |
| 17 | 3741 |
| 18 | 5775 |
| 19 | 8244 |
| 20 | 12447 |
| 21 | 18302 |
| 22 | 26424 |
| 23 | 37827 |
| 24 | 54729 |
| 25 | 78330 |
| 26 | 111184 |
| 27 | 159538 |
| 28 | 225624 |
| 29 | 315415 |
| 30 | 444708 |
| 31 | 618666 |
| 32 | 858165 |
| 33 | 1199701 |
| 34 | 1646076 |
| 35 | 2288961 |
| 36 | 3150951 |
| 37 | 4303995 |
| 38 | 5870539 |
| 39 | 8032571 |
| 40 | 10881794 |
| 41 | 14749051 |
| 42 | 19992626 |
[1,1,2,5,7,15,25,43,64,120,186,288,463,695,1105, 1728,2525,3741,5775,8244,12447,18302,26424,37827, 54729,78330,111184,159538,225624,315415,444708, 618666,858165,1199701,1646076,2288961,3150951, 4303995,5870539,8032571,10881794,14749051, 19992626] |