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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 3 |
| 6 | 7 |
| 7 | 8 |
| 8 | 16 |
| 9 | 22 |
| 10 | 38 |
| 11 | 55 |
| 12 | 98 |
| 13 | 144 |
| 14 | 242 |
| 15 | 381 |
| 16 | 626 |
| 17 | 987 |
| 18 | 1625 |
| 19 | 2584 |
| 20 | 4221 |
| 21 | 6774 |
| 22 | 11002 |
| 23 | 17711 |
| 24 | 28768 |
| 25 | 46371 |
| 26 | 75170 |
| 27 | 121415 |
| 28 | 196662 |
| 29 | 317811 |
| 30 | 514650 |
| 31 | 832040 |
| 32 | 1346895 |
| 33 | 2178365 |
| 34 | 3525566 |
| 35 | 5702898 |
| 36 | 9229181 |
| 37 | 14930352 |
| 38 | 24160402 |
| 39 | 39088314 |
[0,1,1,3,3,7,8,16,22,38,55,98,144,242,381,626,987, 1625,2584,4221,6774,11002,17711,28768,46371,75170, 121415,196662,317811,514650,832040,1346895, 2178365,3525566,5702898,9229181,14930352,24160402, 39088314] |