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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 24 |
| 6 | 48 |
| 7 | 86 |
| 8 | 160 |
| 9 | 281 |
| 10 | 497 |
| 11 | 851 |
| 12 | 1460 |
| 13 | 2442 |
| 14 | 4076 |
| 15 | 6692 |
| 16 | 10928 |
| 17 | 17623 |
| 18 | 28266 |
| 19 | 44873 |
| 20 | 70842 |
| 21 | 110910 |
| 22 | 172674 |
| 23 | 266942 |
| 24 | 410512 |
| 25 | 627387 |
| 26 | 954113 |
| 27 | 1443063 |
| 28 | 2172456 |
| 29 | 3254446 |
| 30 | 4854236 |
| 31 | 7208018 |
| 32 | 10659872 |
| 33 | 15700111 |
| 34 | 23035956 |
| 35 | 33671399 |
| 36 | 49042600 |
| 37 | 71179250 |
| 38 | 102963936 |
| 39 | 148452294 |
[1,1,3,6,13,24,48,86,160,281,497,851,1460,2442, 4076,6692,10928,17623,28266,44873,70842,110910, 172674,266942,410512,627387,954113,1443063, 2172456,3254446,4854236,7208018,10659872,15700111, 23035956,33671399,49042600,71179250,102963936, 148452294] |