A033994 - cp's OEIS frontend

A033994 a(n) = n(n+1)(5*n+1)/6.

n	a(n)
1	2
2	11
3	32
4	70
5	130
6	217
7	336
8	492
9	690
10	935
11	1232
12	1586
13	2002
14	2485
15	3040
16	3672
17	4386
18	5187
19	6080
20	7070
21	8162
22	9361
23	10672
24	12100
25	13650
26	15327
27	17136
28	19082
29	21170
30	23405
31	25792
32	28336
33	31042
34	33915
35	36960
36	40182
37	43586
38	47177
39	50960
40	54940

[2, 11, 32, 70, 130, 217, 336, 492, 690, 935, 1232, 1586, 2002, 2485, 3040, 3672, 4386, 5187, 6080, 7070, 8162, 9361, 10672, 12100, 13650, 15327, 17136, 19082, 21170, 23405, 25792, 28336, 31042, 33915, 36960, 40182, 43586, 47177, 50960, 54940]

cp's OEIS Frontend

A033994 a(n) = n(n+1)(5*n+1)/6.

Table of values

List of values

cp's OEIS Frontend

A033994 a(n) = n*(n+1)*(5*n+1)/6.

Table of values

List of values

A033994 a(n) = n(n+1)(5*n+1)/6.