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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 4 |
| 6 | 4 |
| 7 | 7 |
| 8 | 12 |
| 9 | 17 |
| 10 | 23 |
| 11 | 34 |
| 12 | 51 |
| 13 | 75 |
| 14 | 111 |
| 15 | 164 |
| 16 | 239 |
| 17 | 350 |
| 18 | 520 |
| 19 | 767 |
| 20 | 1123 |
| 21 | 1652 |
| 22 | 2439 |
| 23 | 3587 |
| 24 | 5263 |
| 25 | 7745 |
| 26 | 11411 |
| 27 | 16789 |
| 28 | 24695 |
| 29 | 36347 |
| 30 | 53489 |
| 31 | 78686 |
| 32 | 115779 |
| 33 | 170390 |
| 34 | 250711 |
| 35 | 368866 |
| 36 | 542783 |
| 37 | 798713 |
| 38 | 1175208 |
| 39 | 1729189 |
| 40 | 2544462 |
| 41 | 3744077 |
| 42 | 5509068 |
| 43 | 8106165 |
| 44 | 11927785 |
| 45 | 17550956 |
| 46 | 25824938 |
| 47 | 37999743 |
| 48 | 55914293 |
| 49 | 82274088 |
| 50 | 121060721 |
[1,1,1,1,3,4,4,7,12,17,23,34,51,75,111,164,239, 350,520,767,1123,1652,2439,3587,5263,7745,11411, 16789,24695,36347,53489,78686,115779,170390, 250711,368866,542783,798713,1175208,1729189, 2544462,3744077,5509068,8106165,11927785,17550956, 25824938,37999743,55914293,82274088,121060721] |