The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1223367 |
| 2 | 26334567 |
| 3 | 573664291 |
| 4 | 10560688146 |
| 5 | 194159814879 |
| 6 | 3580969060985 |
| 7 | 65010218627788 |
| 8 | 1168401476128817 |
| 9 | 20933663051416233 |
| 10 | 373919224954368567 |
| 11 | 6665816950563295700 |
| 12 | 118699265121073307950 |
| 13 | 2112303786243880860831 |
[1223367,26334567,573664291,10560688146, 194159814879,3580969060985,65010218627788, 1168401476128817,20933663051416233, 373919224954368567,6665816950563295700, 118699265121073307950,2112303786243880860831] |