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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 107 |
| 3 | 1212 |
| 4 | 11307 |
| 5 | 82008 |
| 6 | 492459 |
| 7 | 2488802 |
| 8 | 10810906 |
| 9 | 40954087 |
| 10 | 137334461 |
| 11 | 412834554 |
| 12 | 1123737371 |
| 13 | 2789937671 |
| 14 | 6354724457 |
| 15 | 13348667549 |
| 16 | 25978331545 |
| 17 | 47005248571 |
| 18 | 79292133202 |
| 19 | 125052789966 |
| 20 | 185063311252 |
| 21 | 258100163444 |
| 22 | 340693659166 |
| 23 | 427231510805 |
| 24 | 510573991860 |
[1,5,107,1212,11307,82008,492459,2488802,10810906, 40954087,137334461,412834554,1123737371, 2789937671,6354724457,13348667549,25978331545, 47005248571,79292133202,125052789966,185063311252, 258100163444,340693659166,427231510805, 510573991860] |