A093566 - cp's OEIS frontend

A093566 a(n) = n(n-1)(n-2)(n-3)(n^2-3*n-2)/48.

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	20
6	120
7	455
8	1330
9	3276
10	7140
11	14190
12	26235
13	45760
14	76076
15	121485
16	187460
17	280840
18	410040
19	585276
20	818805
21	1125180
22	1521520
23	2027795
24	2667126
25	3466100
26	4455100
27	5668650
28	7145775
29	8930376
30	11071620
31	13624345
32	16649480
33	20214480

[0, 0, 0, 0, 1, 20, 120, 455, 1330, 3276, 7140, 14190, 26235, 45760, 76076, 121485, 187460, 280840, 410040, 585276, 818805, 1125180, 1521520, 2027795, 2667126, 3466100, 4455100, 5668650, 7145775, 8930376, 11071620, 13624345, 16649480, 20214480]

cp's OEIS Frontend

A093566 a(n) = n(n-1)(n-2)(n-3)(n^2-3*n-2)/48.

Table of values

List of values

cp's OEIS Frontend

A093566 a(n) = n*(n-1)*(n-2)*(n-3)*(n^2-3*n-2)/48.

Table of values

List of values

A093566 a(n) = n(n-1)(n-2)(n-3)(n^2-3*n-2)/48.