A337677 - cp's OEIS frontend

A337677 a(0) = 1; a(n) = -(n!)^4 * Sum_{k=0..n-1} a(k) / (k! * (n-k))^4.

n	a(n)
0	1
1	-1
2	15
3	-1150
4	277760
5	-164021776
6	200693093392
7	-455136213439776
8	1760342776470958080
9	-10907982472777142353920
10	103006437933467240856354816
11	-1424284967682216438413265543168
12	27890228890526992620507064048877568
13	-752281114397558490715695708227012591616

[1, -1, 15, -1150, 277760, -164021776, 200693093392, -455136213439776, 1760342776470958080, -10907982472777142353920, 103006437933467240856354816, -1424284967682216438413265543168, 27890228890526992620507064048877568, -752281114397558490715695708227012591616]

cp's OEIS Frontend

A337677 a(0) = 1; a(n) = -(n!)^4 * Sum_{k=0..n-1} a(k) / (k! * (n-k))^4.

Table of values

List of values