A116221 - cp's OEIS frontend

A116221 If X_1,...,X_n is a partition of a 5n-set X into 5-blocks then a(n) is equal to the number of permutations f of X such that f(X_i) <> X_i, (i=1,...,n).

n	a(n)
1	0
2	3614400
3	1306371456000
4	2432274637386240000
5	15509750490368582860800000
6	265241692266421512138485760000000
7	10332925158674345473855915900600320000000
8	815905363532798455769292988741440720076800000000
9	119621339682330952236606797649198078512534126592000000000

[0, 3614400, 1306371456000, 2432274637386240000, 15509750490368582860800000, 265241692266421512138485760000000, 10332925158674345473855915900600320000000, 815905363532798455769292988741440720076800000000, 119621339682330952236606797649198078512534126592000000000]

cp's OEIS Frontend

A116221 If X_1,...,X_n is a partition of a 5n-set X into 5-blocks then a(n) is equal to the number of permutations f of X such that f(X_i) <> X_i, (i=1,...,n).

Table of values

List of values