A191766 - cp's OEIS frontend

A191766 Integers that are a sum of two triangular numbers and also the sum of two square numbers (including zeros).

n	a(n)
1	0
2	1
3	2
4	4
5	9
6	10
7	13
8	16
9	18
10	20
11	25
12	29
13	34
14	36
15	37
16	45
17	49
18	58
19	61
20	64
21	65
22	72
23	73
24	81
25	90
26	97
27	100
28	101
29	106
30	121
31	130
32	136
33	137
34	144
35	146
36	148
37	153
38	157
39	160
40	164
41	169
42	181
43	193
44	196
45	200
46	202
47	205
48	208
49	218
50	225
51	226
52	232
53	234
54	241
55	244
56	245

[0, 1, 2, 4, 9, 10, 13, 16, 18, 20, 25, 29, 34, 36, 37, 45, 49, 58, 61, 64, 65, 72, 73, 81, 90, 97, 100, 101, 106, 121, 130, 136, 137, 144, 146, 148, 153, 157, 160, 164, 169, 181, 193, 196, 200, 202, 205, 208, 218, 225, 226, 232, 234, 241, 244, 245]

cp's OEIS Frontend

A191766 Integers that are a sum of two triangular numbers and also the sum of two square numbers (including zeros).

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	4
5	9
6	10
7	13
8	16
9	18
10	20
11	25
12	29
13	34
14	36
15	37
16	45
17	49
18	58
19	61
20	64
21	65
22	72
23	73
24	81
25	90
26	97
27	100
28	101
29	106
30	121
31	130
32	136
33	137
34	144
35	146
36	148
37	153
38	157
39	160
40	164
41	169
42	181
43	193
44	196
45	200
46	202
47	205
48	208
49	218
50	225
51	226
52	232
53	234
54	241
55	244
56	245

n	a(n)
1	0
2	1
3	2
4	4
5	9
6	10
7	13
8	16
9	18
10	20
11	25
12	29
13	34
14	36
15	37
16	45
17	49
18	58
19	61
20	64
21	65
22	72
23	73
24	81
25	90
26	97
27	100
28	101
29	106
30	121
31	130
32	136
33	137
34	144
35	146
36	148
37	153
38	157
39	160
40	164
41	169
42	181
43	193
44	196
45	200
46	202
47	205
48	208
49	218
50	225
51	226
52	232
53	234
54	241
55	244
56	245

n	a(n)
1	0
2	1
3	2
4	4
5	9
6	10
7	13
8	16
9	18
10	20
11	25
12	29
13	34
14	36
15	37
16	45
17	49
18	58
19	61
20	64
21	65
22	72
23	73
24	81
25	90
26	97
27	100
28	101
29	106
30	121
31	130
32	136
33	137
34	144
35	146
36	148
37	153
38	157
39	160
40	164
41	169
42	181
43	193
44	196
45	200
46	202
47	205
48	208
49	218
50	225
51	226
52	232
53	234
54	241
55	244
56	245