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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 14 |
| 5 | 24 |
| 6 | 42 |
| 7 | 72 |
| 8 | 122 |
| 9 | 208 |
| 10 | 354 |
| 11 | 600 |
| 12 | 1018 |
| 13 | 1728 |
| 14 | 2930 |
| 15 | 4968 |
| 16 | 8426 |
| 17 | 14288 |
| 18 | 24226 |
| 19 | 41080 |
| 20 | 69658 |
| 21 | 118112 |
| 22 | 200274 |
| 23 | 339592 |
| 24 | 575818 |
| 25 | 976368 |
| 26 | 1655554 |
| 27 | 2807192 |
| 28 | 4759930 |
| 29 | 8071040 |
| 30 | 13685426 |
| 31 | 23205288 |
| 32 | 39347370 |
| 33 | 66718224 |
| 34 | 113128802 |
| 35 | 191823544 |
[1,2,4,8,14,24,42,72,122,208,354,600,1018,1728, 2930,4968,8426,14288,24226,41080,69658,118112, 200274,339592,575818,976368,1655554,2807192, 4759930,8071040,13685426,23205288,39347370, 66718224,113128802,191823544] |