A213250 - cp's OEIS frontend

A213250 Numbers n such that the coefficient of x^n in the expansion of Product_{k>=1} (1-x^k)^2 is zero.

n	a(n)
1	7
2	11
3	12
4	17
5	18
6	21
7	22
8	25
9	32
10	37
11	39
12	41
13	42
14	43
15	46
16	47
17	49
18	54
19	57
20	58
21	60
22	62
23	65
24	67
25	68
26	72
27	74
28	75
29	76
30	81
31	82
32	87
33	88
34	90
35	92
36	95
37	97
38	98
39	99
40	106
41	107
42	109
43	111
44	112
45	113
46	116
47	117
48	120
49	122
50	123
51	125
52	126
53	128
54	130
55	132
56	136
57	137

[7, 11, 12, 17, 18, 21, 22, 25, 32, 37, 39, 41, 42, 43, 46, 47, 49, 54, 57, 58, 60, 62, 65, 67, 68, 72, 74, 75, 76, 81, 82, 87, 88, 90, 92, 95, 97, 98, 99, 106, 107, 109, 111, 112, 113, 116, 117, 120, 122, 123, 125, 126, 128, 130, 132, 136, 137]

cp's OEIS Frontend

A213250 Numbers n such that the coefficient of x^n in the expansion of Product_{k>=1} (1-x^k)^2 is zero.

Table of values

List of values

n	a(n)
1	7
2	11
3	12
4	17
5	18
6	21
7	22
8	25
9	32
10	37
11	39
12	41
13	42
14	43
15	46
16	47
17	49
18	54
19	57
20	58
21	60
22	62
23	65
24	67
25	68
26	72
27	74
28	75
29	76
30	81
31	82
32	87
33	88
34	90
35	92
36	95
37	97
38	98
39	99
40	106
41	107
42	109
43	111
44	112
45	113
46	116
47	117
48	120
49	122
50	123
51	125
52	126
53	128
54	130
55	132
56	136
57	137

n	a(n)
1	7
2	11
3	12
4	17
5	18
6	21
7	22
8	25
9	32
10	37
11	39
12	41
13	42
14	43
15	46
16	47
17	49
18	54
19	57
20	58
21	60
22	62
23	65
24	67
25	68
26	72
27	74
28	75
29	76
30	81
31	82
32	87
33	88
34	90
35	92
36	95
37	97
38	98
39	99
40	106
41	107
42	109
43	111
44	112
45	113
46	116
47	117
48	120
49	122
50	123
51	125
52	126
53	128
54	130
55	132
56	136
57	137

n	a(n)
1	7
2	11
3	12
4	17
5	18
6	21
7	22
8	25
9	32
10	37
11	39
12	41
13	42
14	43
15	46
16	47
17	49
18	54
19	57
20	58
21	60
22	62
23	65
24	67
25	68
26	72
27	74
28	75
29	76
30	81
31	82
32	87
33	88
34	90
35	92
36	95
37	97
38	98
39	99
40	106
41	107
42	109
43	111
44	112
45	113
46	116
47	117
48	120
49	122
50	123
51	125
52	126
53	128
54	130
55	132
56	136
57	137