The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 161 |
| 2 | 3681 |
| 3 | 91636 |
| 4 | 2265691 |
| 5 | 56126173 |
| 6 | 1389867384 |
| 7 | 34420057373 |
| 8 | 852404560481 |
| 9 | 21109624812630 |
| 10 | 522775448585677 |
| 11 | 12946425187404245 |
| 12 | 320615523780601420 |
| 13 | 7939976687329054275 |
| 14 | 196631869363448682249 |
| 15 | 4869547301285168517052 |
[161,3681,91636,2265691,56126173,1389867384, 34420057373,852404560481,21109624812630, 522775448585677,12946425187404245, 320615523780601420,7939976687329054275, 196631869363448682249,4869547301285168517052] |