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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 3 |
| 3 | 3 |
| 4 | 10 |
| 5 | 14 |
| 6 | 34 |
| 7 | 52 |
| 8 | 108 |
| 9 | 174 |
| 10 | 326 |
| 11 | 533 |
| 12 | 946 |
| 13 | 1539 |
| 14 | 2628 |
| 15 | 4251 |
| 16 | 7046 |
| 17 | 11288 |
| 18 | 18313 |
| 19 | 29017 |
| 20 | 46261 |
| 21 | 72533 |
| 22 | 113942 |
| 23 | 176841 |
| 24 | 274353 |
| 25 | 421680 |
| 26 | 647065 |
| 27 | 985593 |
| 28 | 1497641 |
| 29 | 2261971 |
| 30 | 3406992 |
| 31 | 5105317 |
| 32 | 7628112 |
| 33 | 11346861 |
| 34 | 16829094 |
| 35 | 24861952 |
| 36 | 36623009 |
| 37 | 53756775 |
[1,0,3,3,10,14,34,52,108,174,326,533,946,1539, 2628,4251,7046,11288,18313,29017,46261,72533, 113942,176841,274353,421680,647065,985593,1497641, 2261971,3406992,5105317,7628112,11346861,16829094, 24861952,36623009,53756775] |