A356608 - cp's OEIS frontend

A356608 a(n) = n! * Sum_{k=0..floor(n/4)} (n - 4k)^k/(24^k (n - 4*k)!).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	6
6	31
7	106
8	281
9	1261
10	13861
11	106261
12	558361
13	2709136
14	32802771
15	447762316
16	4093711441
17	28011714641
18	293624974441
19	5549250905281
20	80454378591121
21	815886496908946
22	8379058314620071
23	168672787637953446
24	3514729162490432041
25	51656083670790267901

[1, 1, 1, 1, 1, 6, 31, 106, 281, 1261, 13861, 106261, 558361, 2709136, 32802771, 447762316, 4093711441, 28011714641, 293624974441, 5549250905281, 80454378591121, 815886496908946, 8379058314620071, 168672787637953446, 3514729162490432041, 51656083670790267901]

cp's OEIS Frontend

A356608 a(n) = n! * Sum_{k=0..floor(n/4)} (n - 4k)^k/(24^k (n - 4*k)!).

Table of values

List of values

cp's OEIS Frontend

A356608 a(n) = n! * Sum_{k=0..floor(n/4)} (n - 4*k)^k/(24^k * (n - 4*k)!).

Table of values

List of values

A356608 a(n) = n! * Sum_{k=0..floor(n/4)} (n - 4k)^k/(24^k (n - 4*k)!).