A357505 - cp's OEIS frontend

A357505 Numbers that are not sum of two distinct triangular numbers.

n	a(n)
1	0
2	2
3	5
4	8
5	12
6	14
7	17
8	19
9	20
10	23
11	26
12	30
13	32
14	33
15	35
16	40
17	41
18	44
19	47
20	50
21	52
22	53
23	54
24	59
25	62
26	63
27	68
28	71
29	74
30	75
31	77
32	80
33	82
34	85
35	86
36	89
37	90
38	95
39	96
40	98
41	103
42	104
43	107
44	109
45	110
46	113
47	116
48	117
49	118
50	122
51	124
52	125
53	128
54	129
55	131
56	132
57	134
58	138
59	140
60	143
61	145
62	147

[0, 2, 5, 8, 12, 14, 17, 19, 20, 23, 26, 30, 32, 33, 35, 40, 41, 44, 47, 50, 52, 53, 54, 59, 62, 63, 68, 71, 74, 75, 77, 80, 82, 85, 86, 89, 90, 95, 96, 98, 103, 104, 107, 109, 110, 113, 116, 117, 118, 122, 124, 125, 128, 129, 131, 132, 134, 138, 140, 143, 145, 147]

cp's OEIS Frontend

A357505 Numbers that are not sum of two distinct triangular numbers.

Table of values

List of values

n	a(n)
1	0
2	2
3	5
4	8
5	12
6	14
7	17
8	19
9	20
10	23
11	26
12	30
13	32
14	33
15	35
16	40
17	41
18	44
19	47
20	50
21	52
22	53
23	54
24	59
25	62
26	63
27	68
28	71
29	74
30	75
31	77
32	80
33	82
34	85
35	86
36	89
37	90
38	95
39	96
40	98
41	103
42	104
43	107
44	109
45	110
46	113
47	116
48	117
49	118
50	122
51	124
52	125
53	128
54	129
55	131
56	132
57	134
58	138
59	140
60	143
61	145
62	147

n	a(n)
1	0
2	2
3	5
4	8
5	12
6	14
7	17
8	19
9	20
10	23
11	26
12	30
13	32
14	33
15	35
16	40
17	41
18	44
19	47
20	50
21	52
22	53
23	54
24	59
25	62
26	63
27	68
28	71
29	74
30	75
31	77
32	80
33	82
34	85
35	86
36	89
37	90
38	95
39	96
40	98
41	103
42	104
43	107
44	109
45	110
46	113
47	116
48	117
49	118
50	122
51	124
52	125
53	128
54	129
55	131
56	132
57	134
58	138
59	140
60	143
61	145
62	147

n	a(n)
1	0
2	2
3	5
4	8
5	12
6	14
7	17
8	19
9	20
10	23
11	26
12	30
13	32
14	33
15	35
16	40
17	41
18	44
19	47
20	50
21	52
22	53
23	54
24	59
25	62
26	63
27	68
28	71
29	74
30	75
31	77
32	80
33	82
34	85
35	86
36	89
37	90
38	95
39	96
40	98
41	103
42	104
43	107
44	109
45	110
46	113
47	116
48	117
49	118
50	122
51	124
52	125
53	128
54	129
55	131
56	132
57	134
58	138
59	140
60	143
61	145
62	147