A321380 - cp's OEIS frontend

A321380 Expansion of 1/2 * Product_{i>=0, j>=0} (1 + x^(i^2 + j^2)).

n	a(n)
0	1
1	2
2	2
3	2
4	3
5	6
6	8
7	8
8	8
9	12
10	19
11	22
12	22
13	26
14	37
15	48
16	53
17	58
18	72
19	92
20	108
21	118
22	136
23	166
24	195
25	222
26	254
27	298
28	346
29	394
30	453
31	524
32	600
33	672
34	762
35	884
36	1011
37	1126
38	1255
39	1438
40	1652
41	1850
42	2047
43	2302
44	2626
45	2960
46	3274
47	3636
48	4095
49	4602
50	5112
51	5662
52	6319
53	7056
54	7834

[1, 2, 2, 2, 3, 6, 8, 8, 8, 12, 19, 22, 22, 26, 37, 48, 53, 58, 72, 92, 108, 118, 136, 166, 195, 222, 254, 298, 346, 394, 453, 524, 600, 672, 762, 884, 1011, 1126, 1255, 1438, 1652, 1850, 2047, 2302, 2626, 2960, 3274, 3636, 4095, 4602, 5112, 5662, 6319, 7056, 7834]

cp's OEIS Frontend

A321380 Expansion of 1/2 * Product_{i>=0, j>=0} (1 + x^(i^2 + j^2)).

Table of values

List of values