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| n | a(n) |
|---|---|
| 1 | 12 |
| 2 | 46 |
| 3 | 170 |
| 4 | 726 |
| 5 | 3348 |
| 6 | 16126 |
| 7 | 79244 |
| 8 | 393126 |
| 9 | 1958714 |
| 10 | 9778126 |
| 11 | 48856074 |
| 12 | 244203126 |
| 13 | 1220842880 |
| 14 | 6103828126 |
| 15 | 30518276895 |
| 16 | 152589453126 |
| 17 | 762942946982 |
| 18 | 3814705078126 |
| 19 | 19073503797404 |
| 20 | 95367470703126 |
| 21 | 476837245549530 |
| 22 | 2384185986328126 |
| 23 | 11920929391810152 |
| 24 | 59604645751953126 |
| 25 | 298023226060613260 |
[12,46,170,726,3348,16126,79244,393126,1958714, 9778126,48856074,244203126,1220842880,6103828126, 30518276895,152589453126,762942946982, 3814705078126,19073503797404,95367470703126, 476837245549530,2384185986328126, 11920929391810152,59604645751953126, 298023226060613260] |