A120869 - cp's OEIS frontend

A120869 a(n) is the number j for which there exists a unique pair (j,k) of positive integers such that (j + k + 1)^2 - 4k = 13n^2.

n	a(n)
1	1
2	4
3	9
4	3
5	9
6	17
7	3
8	12
9	23
10	1
11	13
12	27
13	43
14	12
15	29
16	48
17	9
18	29
19	51
20	4
21	27
22	52
23	79
24	23
25	51
26	81
27	17
28	48
29	81
30	9
31	43
32	79
33	117
34	36
35	75
36	116
37	27
38	69
39	113
40	16
41	61
42	108
43	3
44	51
45	101
46	153
47	39
48	92
49	147
50	25
51	81
52	139
53	9
54	68
55	129
56	192
57	53
58	117
59	183
60	36
61	103
62	172
63	17
64	87
65	159
66	233
67	69
68	144

[1, 4, 9, 3, 9, 17, 3, 12, 23, 1, 13, 27, 43, 12, 29, 48, 9, 29, 51, 4, 27, 52, 79, 23, 51, 81, 17, 48, 81, 9, 43, 79, 117, 36, 75, 116, 27, 69, 113, 16, 61, 108, 3, 51, 101, 153, 39, 92, 147, 25, 81, 139, 9, 68, 129, 192, 53, 117, 183, 36, 103, 172, 17, 87, 159, 233, 69, 144]

cp's OEIS Frontend

A120869 a(n) is the number j for which there exists a unique pair (j,k) of positive integers such that (j + k + 1)^2 - 4k = 13n^2.

Table of values

List of values

n	a(n)
1	1
2	4
3	9
4	3
5	9
6	17
7	3
8	12
9	23
10	1
11	13
12	27
13	43
14	12
15	29
16	48
17	9
18	29
19	51
20	4
21	27
22	52
23	79
24	23
25	51
26	81
27	17
28	48
29	81
30	9
31	43
32	79
33	117
34	36
35	75
36	116
37	27
38	69
39	113
40	16
41	61
42	108
43	3
44	51
45	101
46	153
47	39
48	92
49	147
50	25
51	81
52	139
53	9
54	68
55	129
56	192
57	53
58	117
59	183
60	36
61	103
62	172
63	17
64	87
65	159
66	233
67	69
68	144

n	a(n)
1	1
2	4
3	9
4	3
5	9
6	17
7	3
8	12
9	23
10	1
11	13
12	27
13	43
14	12
15	29
16	48
17	9
18	29
19	51
20	4
21	27
22	52
23	79
24	23
25	51
26	81
27	17
28	48
29	81
30	9
31	43
32	79
33	117
34	36
35	75
36	116
37	27
38	69
39	113
40	16
41	61
42	108
43	3
44	51
45	101
46	153
47	39
48	92
49	147
50	25
51	81
52	139
53	9
54	68
55	129
56	192
57	53
58	117
59	183
60	36
61	103
62	172
63	17
64	87
65	159
66	233
67	69
68	144

cp's OEIS Frontend

A120869 a(n) is the number j for which there exists a unique pair (j,k) of positive integers such that (j + k + 1)^2 - 4*k = 13*n^2.

Table of values

List of values

A120869 a(n) is the number j for which there exists a unique pair (j,k) of positive integers such that (j + k + 1)^2 - 4k = 13n^2.

n	a(n)
1	1
2	4
3	9
4	3
5	9
6	17
7	3
8	12
9	23
10	1
11	13
12	27
13	43
14	12
15	29
16	48
17	9
18	29
19	51
20	4
21	27
22	52
23	79
24	23
25	51
26	81
27	17
28	48
29	81
30	9
31	43
32	79
33	117
34	36
35	75
36	116
37	27
38	69
39	113
40	16
41	61
42	108
43	3
44	51
45	101
46	153
47	39
48	92
49	147
50	25
51	81
52	139
53	9
54	68
55	129
56	192
57	53
58	117
59	183
60	36
61	103
62	172
63	17
64	87
65	159
66	233
67	69
68	144