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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 2 |
| 3 | 3 |
| 4 | 3 |
| 5 | 8 |
| 6 | 14 |
| 7 | 15 |
| 8 | 35 |
| 9 | 59 |
| 10 | 69 |
| 11 | 147 |
| 12 | 245 |
| 13 | 300 |
| 14 | 608 |
| 15 | 1005 |
| 16 | 1269 |
| 17 | 2489 |
| 18 | 4091 |
| 19 | 5280 |
| 20 | 10120 |
| 21 | 16565 |
| 22 | 21735 |
| 23 | 40950 |
| 24 | 66820 |
| 25 | 88815 |
| 26 | 165125 |
| 27 | 268785 |
| 28 | 361005 |
| 29 | 664108 |
| 30 | 1078904 |
| 31 | 1461609 |
| 32 | 2665617 |
| 33 | 4323643 |
| 34 | 5899917 |
| 35 | 10682712 |
| 36 | 17304516 |
| 37 | 23759955 |
| 38 | 42759385 |
| 39 | 69187281 |
[1,0,2,3,3,8,14,15,35,59,69,147,245,300,608,1005, 1269,2489,4091,5280,10120,16565,21735,40950,66820, 88815,165125,268785,361005,664108,1078904,1461609, 2665617,4323643,5899917,10682712,17304516, 23759955,42759385,69187281] |