A034706 - cp's OEIS frontend

A034706 Numbers which are sums of consecutive triangular numbers.

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	9
7	10
8	15
9	16
10	19
11	20
12	21
13	25
14	28
15	31
16	34
17	35
18	36
19	45
20	46
21	49
22	52
23	55
24	56
25	64
26	66
27	74
28	78
29	80
30	81
31	83
32	84
33	85
34	91
35	100
36	105
37	109
38	110
39	116
40	119
41	120
42	121
43	130
44	136
45	144
46	145
47	153
48	155
49	161
50	164
51	165
52	166
53	169
54	171
55	185
56	190
57	196
58	199
59	200
60	202
61	210

[0, 1, 3, 4, 6, 9, 10, 15, 16, 19, 20, 21, 25, 28, 31, 34, 35, 36, 45, 46, 49, 52, 55, 56, 64, 66, 74, 78, 80, 81, 83, 84, 85, 91, 100, 105, 109, 110, 116, 119, 120, 121, 130, 136, 144, 145, 153, 155, 161, 164, 165, 166, 169, 171, 185, 190, 196, 199, 200, 202, 210]

cp's OEIS Frontend

A034706 Numbers which are sums of consecutive triangular numbers.

Table of values

List of values

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	9
7	10
8	15
9	16
10	19
11	20
12	21
13	25
14	28
15	31
16	34
17	35
18	36
19	45
20	46
21	49
22	52
23	55
24	56
25	64
26	66
27	74
28	78
29	80
30	81
31	83
32	84
33	85
34	91
35	100
36	105
37	109
38	110
39	116
40	119
41	120
42	121
43	130
44	136
45	144
46	145
47	153
48	155
49	161
50	164
51	165
52	166
53	169
54	171
55	185
56	190
57	196
58	199
59	200
60	202
61	210

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	9
7	10
8	15
9	16
10	19
11	20
12	21
13	25
14	28
15	31
16	34
17	35
18	36
19	45
20	46
21	49
22	52
23	55
24	56
25	64
26	66
27	74
28	78
29	80
30	81
31	83
32	84
33	85
34	91
35	100
36	105
37	109
38	110
39	116
40	119
41	120
42	121
43	130
44	136
45	144
46	145
47	153
48	155
49	161
50	164
51	165
52	166
53	169
54	171
55	185
56	190
57	196
58	199
59	200
60	202
61	210

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	9
7	10
8	15
9	16
10	19
11	20
12	21
13	25
14	28
15	31
16	34
17	35
18	36
19	45
20	46
21	49
22	52
23	55
24	56
25	64
26	66
27	74
28	78
29	80
30	81
31	83
32	84
33	85
34	91
35	100
36	105
37	109
38	110
39	116
40	119
41	120
42	121
43	130
44	136
45	144
46	145
47	153
48	155
49	161
50	164
51	165
52	166
53	169
54	171
55	185
56	190
57	196
58	199
59	200
60	202
61	210