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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 4 |
| 9 | 5 |
| 10 | 6 |
| 11 | 13 |
| 12 | 26 |
| 13 | 49 |
| 14 | 88 |
| 15 | 151 |
| 16 | 397 |
| 17 | 951 |
| 18 | 2145 |
| 19 | 4633 |
| 20 | 9643 |
| 21 | 28898 |
| 22 | 80843 |
| 23 | 214126 |
| 24 | 542081 |
| 25 | 1317924 |
| 26 | 4392295 |
| 27 | 13871122 |
| 28 | 41984457 |
| 29 | 122463762 |
| 30 | 344409561 |
| 31 | 1273659431 |
| 32 | 4463980333 |
| 33 | 14994032599 |
| 34 | 48610148069 |
| 35 | 152506484015 |
| 36 | 614168698264 |
[1,1,1,1,1,1,2,3,4,5,6,13,26,49,88,151,397,951, 2145,4633,9643,28898,80843,214126,542081,1317924, 4392295,13871122,41984457,122463762,344409561, 1273659431,4463980333,14994032599,48610148069, 152506484015,614168698264] |