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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 87 |
| 3 | 325 |
| 4 | 832 |
| 5 | 1764 |
| 6 | 3438 |
| 7 | 6386 |
| 8 | 11506 |
| 9 | 20389 |
| 10 | 35757 |
| 11 | 62317 |
| 12 | 108150 |
| 13 | 187115 |
| 14 | 322925 |
| 15 | 556071 |
| 16 | 955574 |
| 17 | 1638882 |
| 18 | 2805542 |
| 19 | 4794088 |
| 20 | 8178068 |
| 21 | 13927945 |
| 22 | 23683803 |
| 23 | 40214243 |
| 24 | 68187902 |
| 25 | 115469449 |
| 26 | 195294823 |
| 27 | 329919371 |
| 28 | 556731676 |
| 29 | 938492304 |
[2,87,325,832,1764,3438,6386,11506,20389,35757, 62317,108150,187115,322925,556071,955574,1638882, 2805542,4794088,8178068,13927945,23683803, 40214243,68187902,115469449,195294823,329919371, 556731676,938492304] |