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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 8 |
| 5 | 14 |
| 6 | 27 |
| 7 | 50 |
| 8 | 94 |
| 9 | 175 |
| 10 | 327 |
| 11 | 610 |
| 12 | 1139 |
| 13 | 2126 |
| 14 | 3969 |
| 15 | 7409 |
| 16 | 13831 |
| 17 | 25819 |
| 18 | 48198 |
| 19 | 89974 |
| 20 | 167960 |
| 21 | 313541 |
| 22 | 585306 |
| 23 | 1092626 |
| 24 | 2039671 |
| 25 | 3807577 |
| 26 | 7107834 |
| 27 | 13268623 |
| 28 | 24769340 |
| 29 | 46238423 |
| 30 | 86316057 |
| 31 | 161131397 |
| 32 | 300793711 |
| 33 | 561509788 |
| 34 | 1048204236 |
| 35 | 1956746158 |
| 36 | 3652776239 |
[1,1,3,4,8,14,27,50,94,175,327,610,1139,2126,3969, 7409,13831,25819,48198,89974,167960,313541,585306, 1092626,2039671,3807577,7107834,13268623,24769340, 46238423,86316057,161131397,300793711,561509788, 1048204236,1956746158,3652776239] |