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| n | a(n) |
|---|---|
| 1 | 12578 |
| 2 | 35354 |
| 3 | 101464 |
| 4 | 304746 |
| 5 | 937034 |
| 6 | 2978124 |
| 7 | 9680994 |
| 8 | 32349918 |
| 9 | 110399304 |
| 10 | 385970050 |
| 11 | 1376013714 |
| 12 | 5011652964 |
| 13 | 18582312010 |
| 14 | 70201181566 |
| 15 | 269458590752 |
| 16 | 1050901159562 |
| 17 | 4154691374234 |
| 18 | 16642155164228 |
| 19 | 67410127701802 |
[12578,35354,101464,304746,937034,2978124,9680994, 32349918,110399304,385970050,1376013714, 5011652964,18582312010,70201181566,269458590752, 1050901159562,4154691374234,16642155164228, 67410127701802] |