| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 34 |
| 3 | 249 |
| 4 | 1920 |
| 5 | 15232 |
| 6 | 123323 |
| 7 | 1012996 |
| 8 | 8413325 |
| 9 | 70482133 |
| 10 | 594587235 |
| 11 | 5044756083 |
| 12 | 43007895169 |
| 13 | 368151018388 |
| 14 | 3162466934006 |
| 15 | 27248906449457 |
| 16 | 235414313839524 |
| 17 | 2038652180610193 |
| 18 | 17691623325368274 |
| 19 | 153819626587560407 |
[5,34,249,1920,15232,123323,1012996,8413325, 70482133,594587235,5044756083,43007895169, 368151018388,3162466934006,27248906449457, 235414313839524,2038652180610193, 17691623325368274,153819626587560407] |