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A307650 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 27 |
| 4 | 345 |
| 5 | 5513 |
| 6 | 106619 |
| 7 | 2426819 |
| 8 | 63595653 |
| 9 | 1886225589 |
| 10 | 62471885847 |
| 11 | 2285488346111 |
| 12 | 91536241567505 |
| 13 | 3983627374435361 |
| 14 | 187189099298640435 |
| 15 | 9445664642509417563 |
| 16 | 509426043718487709501 |
| 17 | 29243389264220375989229 |
| 18 | 1780261345776857866401263 |
| 19 | 114560896953217093009807895 |
[1,1,3,27,345,5513,106619,2426819,63595653, 1886225589,62471885847,2285488346111, 91536241567505,3983627374435361, 187189099298640435,9445664642509417563, 509426043718487709501,29243389264220375989229, 1780261345776857866401263, 114560896953217093009807895] |