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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 9 |
| 6 | 16 |
| 7 | 25 |
| 8 | 42 |
| 9 | 65 |
| 10 | 105 |
| 11 | 162 |
| 12 | 256 |
| 13 | 391 |
| 14 | 605 |
| 15 | 918 |
| 16 | 1401 |
| 17 | 2106 |
| 18 | 3176 |
| 19 | 4739 |
| 20 | 7076 |
| 21 | 10482 |
| 22 | 15518 |
| 23 | 22833 |
| 24 | 33556 |
| 25 | 49068 |
| 26 | 71633 |
| 27 | 104153 |
| 28 | 151155 |
| 29 | 218609 |
| 30 | 315562 |
| 31 | 454150 |
| 32 | 652343 |
| 33 | 934559 |
| 34 | 1336328 |
| 35 | 1906307 |
| 36 | 2714409 |
| 37 | 3856777 |
| 38 | 5470236 |
| 39 | 7743437 |
| 40 | 10942743 |
| 41 | 15435773 |
[1,1,2,3,6,9,16,25,42,65,105,162,256,391,605,918, 1401,2106,3176,4739,7076,10482,15518,22833,33556, 49068,71633,104153,151155,218609,315562,454150, 652343,934559,1336328,1906307,2714409,3856777, 5470236,7743437,10942743,15435773] |