A376813 - cp's OEIS frontend

A376813 G.f.: Sum_{k>=0} x^(k(k+1)) Product_{j=1..k} (1 + x^j)^2.

n	a(n)
0	1
1	0
2	1
3	2
4	1
5	0
6	1
7	2
8	3
9	4
10	3
11	2
12	2
13	2
14	3
15	6
16	7
17	8
18	10
19	8
20	8
21	8
22	6
23	8
24	10
25	12
26	16
27	20
28	22
29	24
30	27
31	26
32	25
33	26
34	25
35	26
36	29
37	32
38	37
39	44
40	52
41	58
42	66
43	72
44	76
45	82
46	82
47	84
48	87
49	88
50	91
51	96
52	103
53	112
54	126
55	138
56	154
57	174
58	190
59	208
60	225
61	238
62	253
63	268
64	275
65	284
66	296
67	304

[1, 0, 1, 2, 1, 0, 1, 2, 3, 4, 3, 2, 2, 2, 3, 6, 7, 8, 10, 8, 8, 8, 6, 8, 10, 12, 16, 20, 22, 24, 27, 26, 25, 26, 25, 26, 29, 32, 37, 44, 52, 58, 66, 72, 76, 82, 82, 84, 87, 88, 91, 96, 103, 112, 126, 138, 154, 174, 190, 208, 225, 238, 253, 268, 275, 284, 296, 304]

cp's OEIS Frontend

A376813 G.f.: Sum_{k>=0} x^(k(k+1)) Product_{j=1..k} (1 + x^j)^2.

Table of values

List of values

n	a(n)
0	1
1	0
2	1
3	2
4	1
5	0
6	1
7	2
8	3
9	4
10	3
11	2
12	2
13	2
14	3
15	6
16	7
17	8
18	10
19	8
20	8
21	8
22	6
23	8
24	10
25	12
26	16
27	20
28	22
29	24
30	27
31	26
32	25
33	26
34	25
35	26
36	29
37	32
38	37
39	44
40	52
41	58
42	66
43	72
44	76
45	82
46	82
47	84
48	87
49	88
50	91
51	96
52	103
53	112
54	126
55	138
56	154
57	174
58	190
59	208
60	225
61	238
62	253
63	268
64	275
65	284
66	296
67	304

n	a(n)
0	1
1	0
2	1
3	2
4	1
5	0
6	1
7	2
8	3
9	4
10	3
11	2
12	2
13	2
14	3
15	6
16	7
17	8
18	10
19	8
20	8
21	8
22	6
23	8
24	10
25	12
26	16
27	20
28	22
29	24
30	27
31	26
32	25
33	26
34	25
35	26
36	29
37	32
38	37
39	44
40	52
41	58
42	66
43	72
44	76
45	82
46	82
47	84
48	87
49	88
50	91
51	96
52	103
53	112
54	126
55	138
56	154
57	174
58	190
59	208
60	225
61	238
62	253
63	268
64	275
65	284
66	296
67	304

cp's OEIS Frontend

A376813 G.f.: Sum_{k>=0} x^(k*(k+1)) * Product_{j=1..k} (1 + x^j)^2.

Table of values

List of values

A376813 G.f.: Sum_{k>=0} x^(k(k+1)) Product_{j=1..k} (1 + x^j)^2.

n	a(n)
0	1
1	0
2	1
3	2
4	1
5	0
6	1
7	2
8	3
9	4
10	3
11	2
12	2
13	2
14	3
15	6
16	7
17	8
18	10
19	8
20	8
21	8
22	6
23	8
24	10
25	12
26	16
27	20
28	22
29	24
30	27
31	26
32	25
33	26
34	25
35	26
36	29
37	32
38	37
39	44
40	52
41	58
42	66
43	72
44	76
45	82
46	82
47	84
48	87
49	88
50	91
51	96
52	103
53	112
54	126
55	138
56	154
57	174
58	190
59	208
60	225
61	238
62	253
63	268
64	275
65	284
66	296
67	304