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| n | a(n) |
|---|---|
| 1 | 2498 |
| 2 | 1974 |
| 3 | 1918 |
| 4 | 2579 |
| 5 | 5029 |
| 6 | 10448 |
| 7 | 25875 |
| 8 | 68772 |
| 9 | 184492 |
| 10 | 504259 |
| 11 | 1385765 |
| 12 | 3809159 |
| 13 | 10487354 |
| 14 | 28887477 |
| 15 | 79569808 |
| 16 | 219199326 |
| 17 | 603879357 |
| 18 | 1663644827 |
| 19 | 4583262341 |
| 20 | 12626722128 |
| 21 | 34786167551 |
| 22 | 95834699674 |
| 23 | 264021398318 |
[2498,1974,1918,2579,5029,10448,25875,68772, 184492,504259,1385765,3809159,10487354,28887477, 79569808,219199326,603879357,1663644827, 4583262341,12626722128,34786167551,95834699674, 264021398318] |