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| n | a(n) |
|---|---|
| 1 | 2056 |
| 2 | 5264 |
| 3 | 14040 |
| 4 | 37824 |
| 5 | 101264 |
| 6 | 266448 |
| 7 | 682576 |
| 8 | 1775840 |
| 9 | 4688592 |
| 10 | 12466400 |
| 11 | 33210308 |
| 12 | 88374488 |
| 13 | 234321984 |
| 14 | 620855216 |
| 15 | 1647800996 |
| 16 | 4382017896 |
| 17 | 11664830948 |
| 18 | 31052342800 |
| 19 | 82626654156 |
| 20 | 219775672688 |
| 21 | 584568705316 |
| 22 | 1555342704360 |
[2056,5264,14040,37824,101264,266448,682576, 1775840,4688592,12466400,33210308,88374488, 234321984,620855216,1647800996,4382017896, 11664830948,31052342800,82626654156,219775672688, 584568705316,1555342704360] |