A000447 - cp's OEIS frontend

A000447 a(n) = 1^2 + 3^2 + 5^2 + 7^2 + ... + (2n-1)^2 = n(4*n^2 - 1)/3.

n	a(n)
0	0
1	1
2	10
3	35
4	84
5	165
6	286
7	455
8	680
9	969
10	1330
11	1771
12	2300
13	2925
14	3654
15	4495
16	5456
17	6545
18	7770
19	9139
20	10660
21	12341
22	14190
23	16215
24	18424
25	20825
26	23426
27	26235
28	29260
29	32509
30	35990
31	39711
32	43680
33	47905
34	52394
35	57155
36	62196
37	67525
38	73150
39	79079
40	85320
41	91881
42	98770
43	105995
44	113564
45	121485

[0, 1, 10, 35, 84, 165, 286, 455, 680, 969, 1330, 1771, 2300, 2925, 3654, 4495, 5456, 6545, 7770, 9139, 10660, 12341, 14190, 16215, 18424, 20825, 23426, 26235, 29260, 32509, 35990, 39711, 43680, 47905, 52394, 57155, 62196, 67525, 73150, 79079, 85320, 91881, 98770, 105995, 113564, 121485]

cp's OEIS Frontend

A000447 a(n) = 1^2 + 3^2 + 5^2 + 7^2 + ... + (2n-1)^2 = n(4*n^2 - 1)/3.

Table of values

List of values

cp's OEIS Frontend

A000447 a(n) = 1^2 + 3^2 + 5^2 + 7^2 + ... + (2*n-1)^2 = n*(4*n^2 - 1)/3.

Table of values

List of values

A000447 a(n) = 1^2 + 3^2 + 5^2 + 7^2 + ... + (2n-1)^2 = n(4*n^2 - 1)/3.