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| n | a(n) |
|---|---|
| 1 | 4346 |
| 2 | 3609 |
| 3 | 8756 |
| 4 | 25231 |
| 5 | 87011 |
| 6 | 285399 |
| 7 | 875435 |
| 8 | 3103838 |
| 9 | 10096792 |
| 10 | 31749014 |
| 11 | 113723049 |
| 12 | 368726042 |
| 13 | 1185416828 |
| 14 | 4275496283 |
| 15 | 13829769780 |
| 16 | 45301551569 |
| 17 | 164329016957 |
| 18 | 530458381091 |
| 19 | 1763892629076 |
| 20 | 6427277914092 |
| 21 | 20713967166825 |
[4346,3609,8756,25231,87011,285399,875435,3103838, 10096792,31749014,113723049,368726042,1185416828, 4275496283,13829769780,45301551569,164329016957, 530458381091,1763892629076,6427277914092, 20713967166825] |