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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 4 |
| 3 | 5 |
| 4 | 294 |
| 5 | 299 |
| 6 | 1191 |
| 7 | 1490 |
| 8 | 87611 |
| 9 | 89101 |
| 10 | 354914 |
| 11 | 444015 |
| 12 | 26107784 |
| 13 | 26551799 |
| 14 | 105763181 |
| 15 | 132314980 |
| 16 | 7780032021 |
| 17 | 7912347001 |
| 18 | 31517073024 |
| 19 | 39429420025 |
| 20 | 2318423434474 |
| 21 | 2357852854499 |
| 22 | 9391981997971 |
| 23 | 11749834852470 |
| 24 | 690882403441231 |
| 25 | 702632238293701 |
[1,1,4,5,294,299,1191,1490,87611,89101,354914, 444015,26107784,26551799,105763181,132314980, 7780032021,7912347001,31517073024,39429420025, 2318423434474,2357852854499,9391981997971, 11749834852470,690882403441231,702632238293701] |