A113619 - cp's OEIS frontend

A113619 Heptagon-free numbers: numbers k such that no divisor of k is a heptagonal number > 1.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	12
12	13
13	15
14	16
15	17
16	19
17	20
18	22
19	23
20	24
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	33
29	37
30	38
31	39
32	40
33	41
34	43
35	44
36	45
37	46
38	47
39	48
40	50
41	51
42	52
43	53
44	57
45	58
46	59
47	60
48	61
49	62
50	64
51	65
52	66
53	67
54	69
55	71
56	73
57	74
58	75
59	76
60	78
61	79
62	80
63	82
64	83
65	85
66	86
67	87
68	88
69	89
70	92
71	93
72	94
73	95
74	96
75	97
76	99
77	100

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 19, 20, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 48, 50, 51, 52, 53, 57, 58, 59, 60, 61, 62, 64, 65, 66, 67, 69, 71, 73, 74, 75, 76, 78, 79, 80, 82, 83, 85, 86, 87, 88, 89, 92, 93, 94, 95, 96, 97, 99, 100]

cp's OEIS Frontend

A113619 Heptagon-free numbers: numbers k such that no divisor of k is a heptagonal number > 1.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	12
12	13
13	15
14	16
15	17
16	19
17	20
18	22
19	23
20	24
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	33
29	37
30	38
31	39
32	40
33	41
34	43
35	44
36	45
37	46
38	47
39	48
40	50
41	51
42	52
43	53
44	57
45	58
46	59
47	60
48	61
49	62
50	64
51	65
52	66
53	67
54	69
55	71
56	73
57	74
58	75
59	76
60	78
61	79
62	80
63	82
64	83
65	85
66	86
67	87
68	88
69	89
70	92
71	93
72	94
73	95
74	96
75	97
76	99
77	100

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	12
12	13
13	15
14	16
15	17
16	19
17	20
18	22
19	23
20	24
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	33
29	37
30	38
31	39
32	40
33	41
34	43
35	44
36	45
37	46
38	47
39	48
40	50
41	51
42	52
43	53
44	57
45	58
46	59
47	60
48	61
49	62
50	64
51	65
52	66
53	67
54	69
55	71
56	73
57	74
58	75
59	76
60	78
61	79
62	80
63	82
64	83
65	85
66	86
67	87
68	88
69	89
70	92
71	93
72	94
73	95
74	96
75	97
76	99
77	100

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	12
12	13
13	15
14	16
15	17
16	19
17	20
18	22
19	23
20	24
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	33
29	37
30	38
31	39
32	40
33	41
34	43
35	44
36	45
37	46
38	47
39	48
40	50
41	51
42	52
43	53
44	57
45	58
46	59
47	60
48	61
49	62
50	64
51	65
52	66
53	67
54	69
55	71
56	73
57	74
58	75
59	76
60	78
61	79
62	80
63	82
64	83
65	85
66	86
67	87
68	88
69	89
70	92
71	93
72	94
73	95
74	96
75	97
76	99
77	100