A050798 - cp's OEIS frontend

A050798 Numbers n such that m = n^2 + 1 is expressible as the sum of two nonzero squares in exactly two ways.

n	a(n)
1	1
2	7
3	8
4	12
5	13
6	17
7	21
8	22
9	23
10	27
11	28
12	30
13	31
14	33
15	34
16	37
17	41
18	42
19	44
20	46
21	48
22	50
23	52
24	53
25	55
26	58
27	60
28	62
29	63
30	64
31	67
32	75
33	76
34	77
35	78
36	80
37	81
38	86
39	87
40	88
41	89
42	91
43	92
44	96
45	97
46	100
47	102
48	103
49	104
50	105
51	106
52	108
53	109
54	111
55	113
56	114
57	115
58	119
59	125
60	127
61	129
62	135
63	136

[1, 7, 8, 12, 13, 17, 21, 22, 23, 27, 28, 30, 31, 33, 34, 37, 41, 42, 44, 46, 48, 50, 52, 53, 55, 58, 60, 62, 63, 64, 67, 75, 76, 77, 78, 80, 81, 86, 87, 88, 89, 91, 92, 96, 97, 100, 102, 103, 104, 105, 106, 108, 109, 111, 113, 114, 115, 119, 125, 127, 129, 135, 136]

cp's OEIS Frontend

A050798 Numbers n such that m = n^2 + 1 is expressible as the sum of two nonzero squares in exactly two ways.

Table of values

List of values

n	a(n)
1	1
2	7
3	8
4	12
5	13
6	17
7	21
8	22
9	23
10	27
11	28
12	30
13	31
14	33
15	34
16	37
17	41
18	42
19	44
20	46
21	48
22	50
23	52
24	53
25	55
26	58
27	60
28	62
29	63
30	64
31	67
32	75
33	76
34	77
35	78
36	80
37	81
38	86
39	87
40	88
41	89
42	91
43	92
44	96
45	97
46	100
47	102
48	103
49	104
50	105
51	106
52	108
53	109
54	111
55	113
56	114
57	115
58	119
59	125
60	127
61	129
62	135
63	136

n	a(n)
1	1
2	7
3	8
4	12
5	13
6	17
7	21
8	22
9	23
10	27
11	28
12	30
13	31
14	33
15	34
16	37
17	41
18	42
19	44
20	46
21	48
22	50
23	52
24	53
25	55
26	58
27	60
28	62
29	63
30	64
31	67
32	75
33	76
34	77
35	78
36	80
37	81
38	86
39	87
40	88
41	89
42	91
43	92
44	96
45	97
46	100
47	102
48	103
49	104
50	105
51	106
52	108
53	109
54	111
55	113
56	114
57	115
58	119
59	125
60	127
61	129
62	135
63	136

n	a(n)
1	1
2	7
3	8
4	12
5	13
6	17
7	21
8	22
9	23
10	27
11	28
12	30
13	31
14	33
15	34
16	37
17	41
18	42
19	44
20	46
21	48
22	50
23	52
24	53
25	55
26	58
27	60
28	62
29	63
30	64
31	67
32	75
33	76
34	77
35	78
36	80
37	81
38	86
39	87
40	88
41	89
42	91
43	92
44	96
45	97
46	100
47	102
48	103
49	104
50	105
51	106
52	108
53	109
54	111
55	113
56	114
57	115
58	119
59	125
60	127
61	129
62	135
63	136