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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 7 |
| 4 | 10 |
| 5 | 19 |
| 6 | 42 |
| 7 | 61 |
| 8 | 98 |
| 9 | 151 |
| 10 | 304 |
| 11 | 403 |
| 12 | 654 |
| 13 | 925 |
| 14 | 1400 |
| 15 | 2431 |
| 16 | 3328 |
| 17 | 4903 |
| 18 | 7056 |
| 19 | 10117 |
| 20 | 13952 |
| 21 | 23419 |
| 22 | 30406 |
| 23 | 44683 |
| 24 | 61308 |
| 25 | 87289 |
| 26 | 116822 |
| 27 | 164359 |
| 28 | 247774 |
| 29 | 327715 |
| 30 | 457542 |
| 31 | 624445 |
| 32 | 855062 |
| 33 | 1148023 |
| 34 | 1559188 |
| 35 | 2058643 |
| 36 | 3043506 |
| 37 | 3906637 |
| 38 | 5375732 |
| 39 | 7111975 |
| 40 | 9679852 |
[0,1,2,7,10,19,42,61,98,151,304,403,654,925,1400, 2431,3328,4903,7056,10117,13952,23419,30406,44683, 61308,87289,116822,164359,247774,327715,457542, 624445,855062,1148023,1559188,2058643,3043506, 3906637,5375732,7111975,9679852] |