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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 56 |
| 2 | 812 |
| 3 | 5768 |
| 4 | 26474 |
| 5 | 91112 |
| 6 | 256508 |
| 7 | 623576 |
| 8 | 1356194 |
| 9 | 2703512 |
| 10 | 5025692 |
| 11 | 8823080 |
| 12 | 14768810 |
| 13 | 23744840 |
| 14 | 36881420 |
| 15 | 55599992 |
| 16 | 81659522 |
| 17 | 117206264 |
| 18 | 164826956 |
| 19 | 227605448 |
| 20 | 309182762 |
| 21 | 413820584 |
| 22 | 546468188 |
| 23 | 712832792 |
| 24 | 919453346 |
[1,56,812,5768,26474,91112,256508,623576,1356194, 2703512,5025692,8823080,14768810,23744840, 36881420,55599992,81659522,117206264,164826956, 227605448,309182762,413820584,546468188,712832792, 919453346] |