A153978 - cp's OEIS frontend

A153978 a(n) = n(n-1)(n+1)(3n-2)/12.

n	a(n)
1	0
2	2
3	14
4	50
5	130
6	280
7	532
8	924
9	1500
10	2310
11	3410
12	4862
13	6734
14	9100
15	12040
16	15640
17	19992
18	25194
19	31350
20	38570
21	46970
22	56672
23	67804
24	80500
25	94900
26	111150
27	129402
28	149814
29	172550
30	197780
31	225680
32	256432
33	290224
34	327250
35	367710
36	411810
37	459762

[0, 2, 14, 50, 130, 280, 532, 924, 1500, 2310, 3410, 4862, 6734, 9100, 12040, 15640, 19992, 25194, 31350, 38570, 46970, 56672, 67804, 80500, 94900, 111150, 129402, 149814, 172550, 197780, 225680, 256432, 290224, 327250, 367710, 411810, 459762]

cp's OEIS Frontend

A153978 a(n) = n(n-1)(n+1)(3n-2)/12.

Table of values

List of values

cp's OEIS Frontend

A153978 a(n) = n*(n-1)*(n+1)*(3*n-2)/12.

Table of values

List of values

A153978 a(n) = n(n-1)(n+1)(3n-2)/12.