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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 11 |
| 6 | 19 |
| 7 | 31 |
| 8 | 54 |
| 9 | 92 |
| 10 | 154 |
| 11 | 266 |
| 12 | 454 |
| 13 | 771 |
| 14 | 1319 |
| 15 | 2249 |
| 16 | 3834 |
| 17 | 6550 |
| 18 | 11176 |
| 19 | 19069 |
| 20 | 32558 |
| 21 | 55567 |
| 22 | 94838 |
| 23 | 161891 |
| 24 | 276325 |
| 25 | 471659 |
| 26 | 805102 |
| 27 | 1374234 |
| 28 | 2345724 |
| 29 | 4004031 |
| 30 | 6834605 |
| 31 | 11666260 |
| 32 | 19913668 |
| 33 | 33991462 |
| 34 | 58021534 |
| 35 | 99039592 |
| 36 | 169055094 |
| 37 | 288567886 |
| 38 | 492569833 |
| 39 | 840790082 |
[1,1,2,4,6,11,19,31,54,92,154,266,454,771,1319, 2249,3834,6550,11176,19069,32558,55567,94838, 161891,276325,471659,805102,1374234,2345724, 4004031,6834605,11666260,19913668,33991462, 58021534,99039592,169055094,288567886,492569833, 840790082] |