A094311 - cp's OEIS frontend

A094311 a(n) = n(1+n^2)((2+n^2)^2-n^2)/16.

n	a(n)
1	1
2	20
3	210
4	1309
5	5720
6	19536
7	55825
8	139490
9	314019
10	650440
11	1258796
12	2302455
13	4015570
14	6724004
15	10870035
16	17041156
17	26003285
18	38738700
19	56489014
20	80803505
21	113593116
22	157190440
23	214416005
24	288651174
25	383917975
26	504966176
27	657367920
28	847620235
29	1083255734

[1, 20, 210, 1309, 5720, 19536, 55825, 139490, 314019, 650440, 1258796, 2302455, 4015570, 6724004, 10870035, 17041156, 26003285, 38738700, 56489014, 80803505, 113593116, 157190440, 214416005, 288651174, 383917975, 504966176, 657367920, 847620235, 1083255734]

cp's OEIS Frontend

A094311 a(n) = n(1+n^2)((2+n^2)^2-n^2)/16.

Table of values

List of values

cp's OEIS Frontend

A094311 a(n) = n*(1+n^2)*((2+n^2)^2-n^2)/16.

Table of values

List of values

A094311 a(n) = n(1+n^2)((2+n^2)^2-n^2)/16.