A051533 - cp's OEIS frontend

A051533 Numbers that are the sum of two positive triangular numbers.

n	a(n)
1	2
2	4
3	6
4	7
5	9
6	11
7	12
8	13
9	16
10	18
11	20
12	21
13	22
14	24
15	25
16	27
17	29
18	30
19	31
20	34
21	36
22	37
23	38
24	39
25	42
26	43
27	46
28	48
29	49
30	51
31	55
32	56
33	57
34	58
35	60
36	61
37	64
38	65
39	66
40	67
41	69
42	70
43	72
44	73
45	76
46	79
47	81
48	83
49	84
50	87
51	88
52	90
53	91
54	92
55	93
56	94
57	97
58	99
59	100
60	101
61	102
62	106
63	108

[2, 4, 6, 7, 9, 11, 12, 13, 16, 18, 20, 21, 22, 24, 25, 27, 29, 30, 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, 90, 91, 92, 93, 94, 97, 99, 100, 101, 102, 106, 108]

cp's OEIS Frontend

A051533 Numbers that are the sum of two positive triangular numbers.

Table of values

List of values

n	a(n)
1	2
2	4
3	6
4	7
5	9
6	11
7	12
8	13
9	16
10	18
11	20
12	21
13	22
14	24
15	25
16	27
17	29
18	30
19	31
20	34
21	36
22	37
23	38
24	39
25	42
26	43
27	46
28	48
29	49
30	51
31	55
32	56
33	57
34	58
35	60
36	61
37	64
38	65
39	66
40	67
41	69
42	70
43	72
44	73
45	76
46	79
47	81
48	83
49	84
50	87
51	88
52	90
53	91
54	92
55	93
56	94
57	97
58	99
59	100
60	101
61	102
62	106
63	108

n	a(n)
1	2
2	4
3	6
4	7
5	9
6	11
7	12
8	13
9	16
10	18
11	20
12	21
13	22
14	24
15	25
16	27
17	29
18	30
19	31
20	34
21	36
22	37
23	38
24	39
25	42
26	43
27	46
28	48
29	49
30	51
31	55
32	56
33	57
34	58
35	60
36	61
37	64
38	65
39	66
40	67
41	69
42	70
43	72
44	73
45	76
46	79
47	81
48	83
49	84
50	87
51	88
52	90
53	91
54	92
55	93
56	94
57	97
58	99
59	100
60	101
61	102
62	106
63	108

n	a(n)
1	2
2	4
3	6
4	7
5	9
6	11
7	12
8	13
9	16
10	18
11	20
12	21
13	22
14	24
15	25
16	27
17	29
18	30
19	31
20	34
21	36
22	37
23	38
24	39
25	42
26	43
27	46
28	48
29	49
30	51
31	55
32	56
33	57
34	58
35	60
36	61
37	64
38	65
39	66
40	67
41	69
42	70
43	72
44	73
45	76
46	79
47	81
48	83
49	84
50	87
51	88
52	90
53	91
54	92
55	93
56	94
57	97
58	99
59	100
60	101
61	102
62	106
63	108