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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 5 |
| 6 | 9 |
| 7 | 16 |
| 8 | 26 |
| 9 | 41 |
| 10 | 65 |
| 11 | 95 |
| 12 | 142 |
| 13 | 202 |
| 14 | 293 |
| 15 | 403 |
| 16 | 568 |
| 17 | 766 |
| 18 | 1054 |
| 19 | 1399 |
| 20 | 1886 |
| 21 | 2469 |
| 22 | 3276 |
| 23 | 4237 |
| 24 | 5538 |
| 25 | 7094 |
| 26 | 9162 |
| 27 | 11628 |
| 28 | 14856 |
| 29 | 18704 |
| 30 | 23670 |
| 31 | 29590 |
| 32 | 37130 |
| 33 | 46109 |
| 34 | 57428 |
| 35 | 70885 |
| 36 | 87685 |
| 37 | 107634 |
| 38 | 132324 |
| 39 | 161595 |
| 40 | 197545 |
| 41 | 240091 |
| 42 | 291990 |
| 43 | 353302 |
| 44 | 427624 |
[0,0,0,1,2,5,9,16,26,41,65,95,142,202,293,403,568, 766,1054,1399,1886,2469,3276,4237,5538,7094,9162, 11628,14856,18704,23670,29590,37130,46109,57428, 70885,87685,107634,132324,161595,197545,240091, 291990,353302,427624] |