A058919 - cp's OEIS frontend

A058919 a(n) = n^4/2 - n^3 + 3n^2/2 - n + 1 = (n^2 + 1)(n^2 - 2*n + 2)/2.

n	a(n)
0	1
1	1
2	5
3	25
4	85
5	221
6	481
7	925
8	1625
9	2665
10	4141
11	6161
12	8845
13	12325
14	16745
15	22261
16	29041
17	37265
18	47125
19	58825
20	72581
21	88621
22	107185
23	128525
24	152905
25	180601
26	211901
27	247105
28	286525
29	330485
30	379321
31	433381
32	493025
33	558625
34	630565
35	709241
36	795061
37	888445
38	989825
39	1099645

[1, 1, 5, 25, 85, 221, 481, 925, 1625, 2665, 4141, 6161, 8845, 12325, 16745, 22261, 29041, 37265, 47125, 58825, 72581, 88621, 107185, 128525, 152905, 180601, 211901, 247105, 286525, 330485, 379321, 433381, 493025, 558625, 630565, 709241, 795061, 888445, 989825, 1099645]

cp's OEIS Frontend

A058919 a(n) = n^4/2 - n^3 + 3n^2/2 - n + 1 = (n^2 + 1)(n^2 - 2*n + 2)/2.

Table of values

List of values

cp's OEIS Frontend

A058919 a(n) = n^4/2 - n^3 + 3*n^2/2 - n + 1 = (n^2 + 1)*(n^2 - 2*n + 2)/2.

Table of values

List of values

A058919 a(n) = n^4/2 - n^3 + 3n^2/2 - n + 1 = (n^2 + 1)(n^2 - 2*n + 2)/2.