A362525 - cp's OEIS frontend

A362525 a(n) = n! * Sum_{k=0..floor(n/3)} (k+1)^(k-1) / (6^k * k! * (n-3*k)!).

n	a(n)
0	1
1	1
2	1
3	2
4	5
5	11
6	51
7	246
8	897
9	7085
10	51221
11	260426
12	2938541
13	28279967
14	184234415
15	2714662406
16	32614422401
17	259026339161
18	4721237878537
19	67998862785970
20	637019875964341
21	13852253151455251
22	232584488748665131
23	2510358957337412182
24	63466995535914172225

[1, 1, 1, 2, 5, 11, 51, 246, 897, 7085, 51221, 260426, 2938541, 28279967, 184234415, 2714662406, 32614422401, 259026339161, 4721237878537, 67998862785970, 637019875964341, 13852253151455251, 232584488748665131, 2510358957337412182, 63466995535914172225]

cp's OEIS Frontend

A362525 a(n) = n! * Sum_{k=0..floor(n/3)} (k+1)^(k-1) / (6^k * k! * (n-3*k)!).

Table of values

List of values