A117662 - cp's OEIS frontend

A117662 a(n) = n(n-1)(n-2)*(n+3)/12.

n	a(n)
0	0
1	0
2	0
3	3
4	14
5	40
6	90
7	175
8	308
9	504
10	780
11	1155
12	1650
13	2288
14	3094
15	4095
16	5320
17	6800
18	8568
19	10659
20	13110
21	15960
22	19250
23	23023
24	27324
25	32200
26	37700
27	43875
28	50778
29	58464
30	66990
31	76415
32	86800
33	98208
34	110704
35	124355
36	139230
37	155400
38	172938
39	191919

[0, 0, 0, 3, 14, 40, 90, 175, 308, 504, 780, 1155, 1650, 2288, 3094, 4095, 5320, 6800, 8568, 10659, 13110, 15960, 19250, 23023, 27324, 32200, 37700, 43875, 50778, 58464, 66990, 76415, 86800, 98208, 110704, 124355, 139230, 155400, 172938, 191919]

cp's OEIS Frontend

A117662 a(n) = n(n-1)(n-2)*(n+3)/12.

Table of values

List of values

cp's OEIS Frontend

A117662 a(n) = n*(n-1)*(n-2)*(n+3)/12.

Table of values

List of values

A117662 a(n) = n(n-1)(n-2)*(n+3)/12.