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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 16 |
| 5 | 32 |
| 6 | 62 |
| 7 | 113 |
| 8 | 199 |
| 9 | 339 |
| 10 | 563 |
| 11 | 913 |
| 12 | 1453 |
| 13 | 2271 |
| 14 | 3496 |
| 15 | 5308 |
| 16 | 7959 |
| 17 | 11798 |
| 18 | 17309 |
| 19 | 25151 |
| 20 | 36225 |
| 21 | 51748 |
| 22 | 73359 |
| 23 | 103254 |
| 24 | 144363 |
| 25 | 200568 |
| 26 | 277007 |
| 27 | 380437 |
| 28 | 519715 |
| 29 | 706412 |
| 30 | 955587 |
| 31 | 1286762 |
| 32 | 1725186 |
| 33 | 2303388 |
| 34 | 3063159 |
| 35 | 4058041 |
| 36 | 5356431 |
| 37 | 7045454 |
| 38 | 9235841 |
[0,1,3,7,16,32,62,113,199,339,563,913,1453,2271, 3496,5308,7959,11798,17309,25151,36225,51748, 73359,103254,144363,200568,277007,380437,519715, 706412,955587,1286762,1725186,2303388,3063159, 4058041,5356431,7045454,9235841] |