The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 19 |
| 4 | 41 |
| 5 | 60 |
| 6 | 3161 |
| 7 | 3221 |
| 8 | 9603 |
| 9 | 60839 |
| 10 | 131281 |
| 11 | 192120 |
| 12 | 10121521 |
| 13 | 10313641 |
| 14 | 30748803 |
| 15 | 194806459 |
| 16 | 420361721 |
| 17 | 615168180 |
| 18 | 32409107081 |
| 19 | 33024275261 |
| 20 | 98457657603 |
| 21 | 623770220879 |
| 22 | 1345998099361 |
| 23 | 1969768320240 |
| 24 | 103773950751841 |
| 25 | 105743719072081 |
[1,1,3,19,41,60,3161,3221,9603,60839,131281, 192120,10121521,10313641,30748803,194806459, 420361721,615168180,32409107081,33024275261, 98457657603,623770220879,1345998099361, 1969768320240,103773950751841,105743719072081] |