n | a(n) |
---|---|
1 | 4 |
2 | 56 |
3 | 974 |
4 | 12164 |
5 | 180886 |
6 | 2228098 |
7 | 31650312 |
8 | 390211138 |
9 | 5426848414 |
10 | 67338401270 |
11 | 924586466428 |
12 | 11556584240334 |
13 | 157226907539810 |
14 | 1978592816499310 |
15 | 26727350706141760 |
16 | 338342532540889892 |
17 | 4544157885733729912 |
[4,56,974,12164,180886,2228098,31650312,390211138, 5426848414,67338401270,924586466428, 11556584240334,157226907539810,1978592816499310, 26727350706141760,338342532540889892, 4544157885733729912] |