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| n | a(n) |
|---|---|
| 1 | 4738 |
| 2 | 70284 |
| 3 | 231254 |
| 4 | 512822 |
| 5 | 1339010 |
| 6 | 4329476 |
| 7 | 13842872 |
| 8 | 42480650 |
| 9 | 129860460 |
| 10 | 399765942 |
| 11 | 1232739446 |
| 12 | 3797303378 |
| 13 | 11691726372 |
| 14 | 36003050792 |
| 15 | 110877928074 |
| 16 | 341465317292 |
| 17 | 1051572312470 |
| 18 | 3238405526966 |
| 19 | 9972979227362 |
| 20 | 30712764065540 |
[4738,70284,231254,512822,1339010,4329476, 13842872,42480650,129860460,399765942,1232739446, 3797303378,11691726372,36003050792,110877928074, 341465317292,1051572312470,3238405526966, 9972979227362,30712764065540] |