The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 19 |
| 1 | 20 |
| 2 | 79 |
| 3 | 99 |
| 4 | 3841 |
| 5 | 3940 |
| 6 | 15661 |
| 7 | 19601 |
| 8 | 760499 |
| 9 | 780100 |
| 10 | 3100799 |
| 11 | 3880899 |
| 12 | 150574961 |
| 13 | 154455860 |
| 14 | 613942541 |
| 15 | 768398401 |
| 16 | 29813081779 |
| 17 | 30581480180 |
| 18 | 121557522319 |
| 19 | 152139002499 |
| 20 | 5902839617281 |
| 21 | 6054978619780 |
| 22 | 24067775476621 |
| 23 | 30122754096401 |
| 24 | 1168732431139859 |
[19,20,79,99,3841,3940,15661,19601,760499,780100, 3100799,3880899,150574961,154455860,613942541, 768398401,29813081779,30581480180,121557522319, 152139002499,5902839617281,6054978619780, 24067775476621,30122754096401,1168732431139859] |