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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 5 |
| 3 | 21 |
| 4 | 37 |
| 5 | 53 |
| 6 | 117 |
| 7 | 197 |
| 8 | 261 |
| 9 | 405 |
| 10 | 565 |
| 11 | 789 |
| 12 | 965 |
| 13 | 1221 |
| 14 | 1541 |
| 15 | 1941 |
| 16 | 2453 |
| 17 | 2933 |
| 18 | 3621 |
| 19 | 4389 |
| 20 | 5093 |
| 21 | 5909 |
| 22 | 6805 |
| 23 | 7925 |
| 24 | 9093 |
| 25 | 10629 |
| 26 | 12197 |
| 27 | 14133 |
| 28 | 15733 |
| 29 | 17717 |
| 30 | 19493 |
| 31 | 21605 |
| 32 | 23909 |
| 33 | 26453 |
| 34 | 29109 |
| 35 | 32117 |
| 36 | 35013 |
| 37 | 38085 |
| 38 | 41285 |
[0,1,5,21,37,53,117,197,261,405,565,789,965,1221, 1541,1941,2453,2933,3621,4389,5093,5909,6805,7925, 9093,10629,12197,14133,15733,17717,19493,21605, 23909,26453,29109,32117,35013,38085,41285] |