n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 6 |
3 | 38 |
4 | 1446 |
5 | 2090918 |
6 | 4371938082726 |
7 | 19113842599189892819591078 |
8 | 365338978906606237729724396156395693696687137202086 |
9 | 133472569508521677503139972517335009022889462418844369330479463819154657319297609174034202576402751398 |
[0,2,6,38,1446,2090918,4371938082726, 19113842599189892819591078, 36533897890660623772972439615639569369668713720208\ 6, 13347256950852167750313997251733500902288946241884\ 43693304794638191546573192976091740342025764027513\ 98] |