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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 4 |
| 5 | 5 |
| 6 | 7 |
| 7 | 9 |
| 8 | 13 |
| 9 | 18 |
| 10 | 25 |
| 11 | 34 |
| 12 | 47 |
| 13 | 65 |
| 14 | 90 |
| 15 | 124 |
| 16 | 171 |
| 17 | 236 |
| 18 | 326 |
| 19 | 450 |
| 20 | 621 |
| 21 | 857 |
| 22 | 1183 |
| 23 | 1633 |
| 24 | 2254 |
| 25 | 3111 |
| 26 | 4294 |
| 27 | 5927 |
| 28 | 8181 |
| 29 | 11292 |
| 30 | 15586 |
| 31 | 21513 |
| 32 | 29694 |
| 33 | 40986 |
| 34 | 56572 |
| 35 | 78085 |
| 36 | 107779 |
| 37 | 148765 |
| 38 | 205337 |
| 39 | 283422 |
| 40 | 391201 |
| 41 | 539966 |
| 42 | 745303 |
| 43 | 1028725 |
| 44 | 1419926 |
| 45 | 1959892 |
[1,1,2,2,4,5,7,9,13,18,25,34,47,65,90,124,171,236, 326,450,621,857,1183,1633,2254,3111,4294,5927, 8181,11292,15586,21513,29694,40986,56572,78085, 107779,148765,205337,283422,391201,539966,745303, 1028725,1419926,1959892] |