The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 27 |
| 1 | 28 |
| 2 | 55 |
| 3 | 83 |
| 4 | 1134 |
| 5 | 6887 |
| 6 | 90665 |
| 7 | 97552 |
| 8 | 188217 |
| 9 | 285769 |
| 10 | 15619743 |
| 11 | 15905512 |
| 12 | 31525255 |
| 13 | 47430767 |
| 14 | 648125226 |
| 15 | 3936182123 |
| 16 | 51818492825 |
| 17 | 55754674948 |
| 18 | 107573167773 |
| 19 | 163327842721 |
| 20 | 8927276674707 |
| 21 | 9090604517428 |
| 22 | 18017881192135 |
| 23 | 27108485709563 |
| 24 | 370428195416454 |
[27,28,55,83,1134,6887,90665,97552,188217,285769, 15619743,15905512,31525255,47430767,648125226, 3936182123,51818492825,55754674948,107573167773, 163327842721,8927276674707,9090604517428, 18017881192135,27108485709563,370428195416454] |