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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 6 |
| 6 | 10 |
| 7 | 17 |
| 8 | 32 |
| 9 | 56 |
| 10 | 98 |
| 11 | 177 |
| 12 | 335 |
| 13 | 620 |
| 14 | 1164 |
| 15 | 2231 |
| 16 | 4349 |
| 17 | 8511 |
| 18 | 16870 |
| 19 | 33844 |
| 20 | 68746 |
| 21 | 140894 |
| 22 | 291698 |
| 23 | 610051 |
| 24 | 1288594 |
| 25 | 2745916 |
| 26 | 5903988 |
| 27 | 12805313 |
| 28 | 28010036 |
| 29 | 61764992 |
| 30 | 137281977 |
| 31 | 307488896 |
| 32 | 693912297 |
| 33 | 1577386813 |
| 34 | 3611241900 |
| 35 | 8324940862 |
| 36 | 19321470086 |
[1,1,1,2,4,6,10,17,32,56,98,177,335,620,1164,2231, 4349,8511,16870,33844,68746,140894,291698,610051, 1288594,2745916,5903988,12805313,28010036, 61764992,137281977,307488896,693912297,1577386813, 3611241900,8324940862,19321470086] |