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| n | a(n) |
|---|---|
| -1 | 0 |
| 0 | 1 |
| 1 | 7 |
| 2 | 13 |
| 3 | 19 |
| 4 | 44 |
| 5 | 377 |
| 6 | 710 |
| 7 | 104703 |
| 8 | 208696 |
| 9 | 312689 |
| 10 | 2292816 |
| 11 | 6565759 |
| 12 | 10838702 |
| 13 | 90982559 |
| 14 | 171126416 |
| 15 | 251270273 |
| 16 | 331414130 |
| 17 | 411557987 |
| 18 | 2549491779 |
| 19 | 14885392687 |
| 20 | 56992078969 |
| 21 | 99098765251 |
| 22 | 141205451533 |
| 23 | 183312137815 |
| 24 | 225418824097 |
| 25 | 267525510379 |
| 26 | 309632196661 |
| 27 | 351738882943 |
| 28 | 393845569225 |
| 29 | 435952255507 |
[0,1,7,13,19,44,377,710,104703,208696,312689, 2292816,6565759,10838702,90982559,171126416, 251270273,331414130,411557987,2549491779, 14885392687,56992078969,99098765251,141205451533, 183312137815,225418824097,267525510379, 309632196661,351738882943,393845569225, 435952255507] |