The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 72 |
| 2 | 1177 |
| 3 | 7056 |
| 4 | 27113 |
| 5 | 80360 |
| 6 | 200489 |
| 7 | 442144 |
| 8 | 888465 |
| 9 | 1659976 |
| 10 | 2924889 |
| 11 | 4910896 |
| 12 | 7918521 |
| 13 | 12336104 |
| 14 | 18656489 |
| 15 | 27495488 |
| 16 | 39612193 |
| 17 | 55931208 |
| 18 | 77566873 |
| 19 | 105849552 |
| 20 | 142354057 |
| 21 | 188930280 |
| 22 | 247736105 |
| 23 | 321272672 |
| 24 | 412422065 |
| 25 | 524487496 |
| 26 | 661236057 |
[72,1177,7056,27113,80360,200489,442144,888465, 1659976,2924889,4910896,7918521,12336104,18656489, 27495488,39612193,55931208,77566873,105849552, 142354057,188930280,247736105,321272672,412422065, 524487496,661236057] |