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| n | a(n) |
|---|---|
| 1 | 5496 |
| 2 | 25512 |
| 3 | 118416 |
| 4 | 552708 |
| 5 | 2582556 |
| 6 | 12052496 |
| 7 | 56329528 |
| 8 | 263412952 |
| 9 | 1232134860 |
| 10 | 5763691618 |
| 11 | 26959629032 |
| 12 | 126110016658 |
| 13 | 589931309980 |
| 14 | 2759702449092 |
| 15 | 12909960460066 |
| 16 | 60392916725514 |
| 17 | 282519039049678 |
| 18 | 1321631559432746 |
[5496,25512,118416,552708,2582556,12052496, 56329528,263412952,1232134860,5763691618, 26959629032,126110016658,589931309980, 2759702449092,12909960460066,60392916725514, 282519039049678,1321631559432746] |