A328994 - cp's OEIS frontend

A328994 a(n) = n^2(1+n)(1+n^2)/4.

n	a(n)
1	1
2	15
3	90
4	340
5	975
6	2331
7	4900
8	9360
9	16605
10	27775
11	44286
12	67860
13	100555
14	144795
15	203400
16	279616
17	377145
18	500175
19	653410
20	842100
21	1072071
22	1349755
23	1682220
24	2077200
25	2543125
26	3089151
27	3725190
28	4461940
29	5310915
30	6284475
31	7395856
32	8659200
33	10089585

[1, 15, 90, 340, 975, 2331, 4900, 9360, 16605, 27775, 44286, 67860, 100555, 144795, 203400, 279616, 377145, 500175, 653410, 842100, 1072071, 1349755, 1682220, 2077200, 2543125, 3089151, 3725190, 4461940, 5310915, 6284475, 7395856, 8659200, 10089585]

cp's OEIS Frontend

A328994 a(n) = n^2(1+n)(1+n^2)/4.

Table of values

List of values

cp's OEIS Frontend

A328994 a(n) = n^2*(1+n)*(1+n^2)/4.

Table of values

List of values

A328994 a(n) = n^2(1+n)(1+n^2)/4.