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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 7 |
| 5 | 16 |
| 6 | 33 |
| 7 | 64 |
| 8 | 118 |
| 9 | 210 |
| 10 | 364 |
| 11 | 619 |
| 12 | 1038 |
| 13 | 1723 |
| 14 | 2839 |
| 15 | 4653 |
| 16 | 7597 |
| 17 | 12370 |
| 18 | 20103 |
| 19 | 32626 |
| 20 | 52900 |
| 21 | 85716 |
| 22 | 138826 |
| 23 | 224773 |
| 24 | 363852 |
| 25 | 588901 |
| 26 | 953053 |
| 27 | 1542279 |
| 28 | 2495683 |
| 29 | 4038340 |
| 30 | 6534429 |
| 31 | 10573204 |
| 32 | 17108098 |
| 33 | 27681798 |
| 34 | 44790424 |
| 35 | 72472783 |
[0,1,1,3,7,16,33,64,118,210,364,619,1038,1723, 2839,4653,7597,12370,20103,32626,52900,85716, 138826,224773,363852,588901,953053,1542279, 2495683,4038340,6534429,10573204,17108098, 27681798,44790424,72472783] |