A180917 - cp's OEIS frontend

A180917 Numbers that are not the sum of three positive heptagonal numbers.

n	a(n)
1	1
2	2
3	4
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	16
14	17
15	18
16	19
17	22
18	23
19	24
20	25
21	27
22	28
23	29
24	30
25	31
26	33
27	34
28	35
29	38
30	39
31	40
32	41
33	44
34	45
35	46
36	47
37	49
38	50
39	51
40	52
41	55
42	56
43	58
44	60
45	61
46	62
47	64
48	65
49	66
50	67
51	68
52	71
53	72
54	73
55	76
56	77
57	78
58	79
59	81
60	82
61	84
62	85
63	87
64	88
65	92
66	93
67	94
68	97
69	98
70	99
71	101

[1, 2, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19, 22, 23, 24, 25, 27, 28, 29, 30, 31, 33, 34, 35, 38, 39, 40, 41, 44, 45, 46, 47, 49, 50, 51, 52, 55, 56, 58, 60, 61, 62, 64, 65, 66, 67, 68, 71, 72, 73, 76, 77, 78, 79, 81, 82, 84, 85, 87, 88, 92, 93, 94, 97, 98, 99, 101]

cp's OEIS Frontend

A180917 Numbers that are not the sum of three positive heptagonal numbers.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	16
14	17
15	18
16	19
17	22
18	23
19	24
20	25
21	27
22	28
23	29
24	30
25	31
26	33
27	34
28	35
29	38
30	39
31	40
32	41
33	44
34	45
35	46
36	47
37	49
38	50
39	51
40	52
41	55
42	56
43	58
44	60
45	61
46	62
47	64
48	65
49	66
50	67
51	68
52	71
53	72
54	73
55	76
56	77
57	78
58	79
59	81
60	82
61	84
62	85
63	87
64	88
65	92
66	93
67	94
68	97
69	98
70	99
71	101

n	a(n)
1	1
2	2
3	4
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	16
14	17
15	18
16	19
17	22
18	23
19	24
20	25
21	27
22	28
23	29
24	30
25	31
26	33
27	34
28	35
29	38
30	39
31	40
32	41
33	44
34	45
35	46
36	47
37	49
38	50
39	51
40	52
41	55
42	56
43	58
44	60
45	61
46	62
47	64
48	65
49	66
50	67
51	68
52	71
53	72
54	73
55	76
56	77
57	78
58	79
59	81
60	82
61	84
62	85
63	87
64	88
65	92
66	93
67	94
68	97
69	98
70	99
71	101

n	a(n)
1	1
2	2
3	4
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	16
14	17
15	18
16	19
17	22
18	23
19	24
20	25
21	27
22	28
23	29
24	30
25	31
26	33
27	34
28	35
29	38
30	39
31	40
32	41
33	44
34	45
35	46
36	47
37	49
38	50
39	51
40	52
41	55
42	56
43	58
44	60
45	61
46	62
47	64
48	65
49	66
50	67
51	68
52	71
53	72
54	73
55	76
56	77
57	78
58	79
59	81
60	82
61	84
62	85
63	87
64	88
65	92
66	93
67	94
68	97
69	98
70	99
71	101