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| n | a(n) |
|---|---|
| 1 | 190 |
| 2 | 608 |
| 3 | 2028 |
| 4 | 6552 |
| 5 | 20955 |
| 6 | 68120 |
| 7 | 220854 |
| 8 | 711432 |
| 9 | 2300008 |
| 10 | 7446144 |
| 11 | 24054120 |
| 12 | 77722752 |
| 13 | 251353605 |
| 14 | 812507404 |
| 15 | 2625900876 |
| 16 | 8488906820 |
| 17 | 27442096806 |
| 18 | 88701621392 |
| 19 | 286727659260 |
| 20 | 926874621576 |
| 21 | 2996101722471 |
| 22 | 9684839732128 |
[190,608,2028,6552,20955,68120,220854,711432, 2300008,7446144,24054120,77722752,251353605, 812507404,2625900876,8488906820,27442096806, 88701621392,286727659260,926874621576, 2996101722471,9684839732128] |