A117105 - cp's OEIS frontend

A117105 Numbers that are the sum of three positive heptagonal numbers (A000566) in at least one way.

n	a(n)
1	3
2	9
3	15
4	20
5	21
6	26
7	32
8	36
9	37
10	42
11	43
12	48
13	53
14	54
15	57
16	59
17	63
18	69
19	70
20	74
21	75
22	80
23	83
24	86
25	89
26	90
27	91
28	95
29	96
30	100
31	102
32	106
33	107
34	111
35	114
36	116
37	117
38	120
39	122
40	123
41	126
42	128
43	131
44	133
45	137
46	143
47	144
48	147
49	148
50	149
51	150
52	153
53	154
54	156
55	162
56	163
57	164
58	165

[3, 9, 15, 20, 21, 26, 32, 36, 37, 42, 43, 48, 53, 54, 57, 59, 63, 69, 70, 74, 75, 80, 83, 86, 89, 90, 91, 95, 96, 100, 102, 106, 107, 111, 114, 116, 117, 120, 122, 123, 126, 128, 131, 133, 137, 143, 144, 147, 148, 149, 150, 153, 154, 156, 162, 163, 164, 165]

cp's OEIS Frontend

A117105 Numbers that are the sum of three positive heptagonal numbers (A000566) in at least one way.

Table of values

List of values

n	a(n)
1	3
2	9
3	15
4	20
5	21
6	26
7	32
8	36
9	37
10	42
11	43
12	48
13	53
14	54
15	57
16	59
17	63
18	69
19	70
20	74
21	75
22	80
23	83
24	86
25	89
26	90
27	91
28	95
29	96
30	100
31	102
32	106
33	107
34	111
35	114
36	116
37	117
38	120
39	122
40	123
41	126
42	128
43	131
44	133
45	137
46	143
47	144
48	147
49	148
50	149
51	150
52	153
53	154
54	156
55	162
56	163
57	164
58	165

n	a(n)
1	3
2	9
3	15
4	20
5	21
6	26
7	32
8	36
9	37
10	42
11	43
12	48
13	53
14	54
15	57
16	59
17	63
18	69
19	70
20	74
21	75
22	80
23	83
24	86
25	89
26	90
27	91
28	95
29	96
30	100
31	102
32	106
33	107
34	111
35	114
36	116
37	117
38	120
39	122
40	123
41	126
42	128
43	131
44	133
45	137
46	143
47	144
48	147
49	148
50	149
51	150
52	153
53	154
54	156
55	162
56	163
57	164
58	165

n	a(n)
1	3
2	9
3	15
4	20
5	21
6	26
7	32
8	36
9	37
10	42
11	43
12	48
13	53
14	54
15	57
16	59
17	63
18	69
19	70
20	74
21	75
22	80
23	83
24	86
25	89
26	90
27	91
28	95
29	96
30	100
31	102
32	106
33	107
34	111
35	114
36	116
37	117
38	120
39	122
40	123
41	126
42	128
43	131
44	133
45	137
46	143
47	144
48	147
49	148
50	149
51	150
52	153
53	154
54	156
55	162
56	163
57	164
58	165