A321567 - cp's OEIS frontend

A321567 Expansion of Product_{1 <= i_1 <= i_2 <= i_3 <= i_4} (1 + x^(i_1i_2i_3*i_4)).

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	4
6	6
7	8
8	11
9	16
10	21
11	27
12	38
13	49
14	63
15	84
16	109
17	138
18	180
19	228
20	289
21	369
22	463
23	578
24	732
25	911
26	1128
27	1407
28	1741
29	2140
30	2646
31	3243
32	3967
33	4861
34	5924
35	7196
36	8767
37	10616
38	12827
39	15516
40	18707
41	22486
42	27054
43	32440
44	38835
45	46488
46	55502
47	66136
48	78836
49	93727
50	111265

[1, 1, 1, 2, 3, 4, 6, 8, 11, 16, 21, 27, 38, 49, 63, 84, 109, 138, 180, 228, 289, 369, 463, 578, 732, 911, 1128, 1407, 1741, 2140, 2646, 3243, 3967, 4861, 5924, 7196, 8767, 10616, 12827, 15516, 18707, 22486, 27054, 32440, 38835, 46488, 55502, 66136, 78836, 93727, 111265]

cp's OEIS Frontend

A321567 Expansion of Product_{1 <= i_1 <= i_2 <= i_3 <= i_4} (1 + x^(i_1i_2i_3*i_4)).

Table of values

List of values

cp's OEIS Frontend

A321567 Expansion of Product_{1 <= i_1 <= i_2 <= i_3 <= i_4} (1 + x^(i_1*i_2*i_3*i_4)).

Table of values

List of values

A321567 Expansion of Product_{1 <= i_1 <= i_2 <= i_3 <= i_4} (1 + x^(i_1i_2i_3*i_4)).