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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 9 |
| 4 | 11 |
| 5 | 31 |
| 6 | 166 |
| 7 | 363 |
| 8 | 529 |
| 9 | 2479 |
| 10 | 3008 |
| 11 | 5487 |
| 12 | 310280 |
| 13 | 315767 |
| 14 | 626047 |
| 15 | 2819955 |
| 16 | 3446002 |
| 17 | 9711959 |
| 18 | 52005797 |
| 19 | 113723553 |
| 20 | 165729350 |
| 21 | 776640953 |
| 22 | 942370303 |
| 23 | 1719011256 |
| 24 | 97207000639 |
| 25 | 98926011895 |
| 26 | 196133012534 |
| 27 | 883458062031 |
| 28 | 1079591074565 |
| 29 | 3042640211161 |
[1,1,2,9,11,31,166,363,529,2479,3008,5487,310280, 315767,626047,2819955,3446002,9711959,52005797, 113723553,165729350,776640953,942370303, 1719011256,97207000639,98926011895,196133012534, 883458062031,1079591074565,3042640211161] |