A260647 - cp's OEIS frontend

A260647 Numbers that are the sum of two distinct nonzero triangular numbers.

n	a(n)
1	4
2	7
3	9
4	11
5	13
6	16
7	18
8	21
9	22
10	24
11	25
12	27
13	29
14	31
15	34
16	36
17	37
18	38
19	39
20	42
21	43
22	46
23	48
24	49
25	51
26	55
27	56
28	57
29	58
30	60
31	61
32	64
33	65
34	66
35	67
36	69
37	70
38	72
39	73
40	76
41	79
42	81
43	83
44	84
45	87
46	88
47	91
48	92
49	93
50	94
51	97
52	99
53	100
54	101
55	102
56	106
57	108
58	111
59	112
60	114
61	115
62	119
63	120

[4, 7, 9, 11, 13, 16, 18, 21, 22, 24, 25, 27, 29, 31, 34, 36, 37, 38, 39, 42, 43, 46, 48, 49, 51, 55, 56, 57, 58, 60, 61, 64, 65, 66, 67, 69, 70, 72, 73, 76, 79, 81, 83, 84, 87, 88, 91, 92, 93, 94, 97, 99, 100, 101, 102, 106, 108, 111, 112, 114, 115, 119, 120]

cp's OEIS Frontend

A260647 Numbers that are the sum of two distinct nonzero triangular numbers.

Table of values

List of values

n	a(n)
1	4
2	7
3	9
4	11
5	13
6	16
7	18
8	21
9	22
10	24
11	25
12	27
13	29
14	31
15	34
16	36
17	37
18	38
19	39
20	42
21	43
22	46
23	48
24	49
25	51
26	55
27	56
28	57
29	58
30	60
31	61
32	64
33	65
34	66
35	67
36	69
37	70
38	72
39	73
40	76
41	79
42	81
43	83
44	84
45	87
46	88
47	91
48	92
49	93
50	94
51	97
52	99
53	100
54	101
55	102
56	106
57	108
58	111
59	112
60	114
61	115
62	119
63	120

n	a(n)
1	4
2	7
3	9
4	11
5	13
6	16
7	18
8	21
9	22
10	24
11	25
12	27
13	29
14	31
15	34
16	36
17	37
18	38
19	39
20	42
21	43
22	46
23	48
24	49
25	51
26	55
27	56
28	57
29	58
30	60
31	61
32	64
33	65
34	66
35	67
36	69
37	70
38	72
39	73
40	76
41	79
42	81
43	83
44	84
45	87
46	88
47	91
48	92
49	93
50	94
51	97
52	99
53	100
54	101
55	102
56	106
57	108
58	111
59	112
60	114
61	115
62	119
63	120

n	a(n)
1	4
2	7
3	9
4	11
5	13
6	16
7	18
8	21
9	22
10	24
11	25
12	27
13	29
14	31
15	34
16	36
17	37
18	38
19	39
20	42
21	43
22	46
23	48
24	49
25	51
26	55
27	56
28	57
29	58
30	60
31	61
32	64
33	65
34	66
35	67
36	69
37	70
38	72
39	73
40	76
41	79
42	81
43	83
44	84
45	87
46	88
47	91
48	92
49	93
50	94
51	97
52	99
53	100
54	101
55	102
56	106
57	108
58	111
59	112
60	114
61	115
62	119
63	120