A307508 - cp's OEIS frontend

A307508 Primes p for which the continued fraction expansion of sqrt(p) does not have a 1 in the second position.

n	a(n)
1	2
2	5
3	11
4	17
5	19
6	29
7	37
8	41
9	53
10	67
11	71
12	83
13	89
14	101
15	103
16	107
17	109
18	127
19	131
20	149
21	151
22	173
23	179
24	181
25	197
26	199
27	227
28	229
29	233
30	239
31	257
32	263
33	269
34	271
35	293
36	331
37	337
38	367
39	373
40	379
41	401
42	409
43	419
44	443
45	449
46	457
47	461
48	487
49	491
50	499
51	503
52	541
53	547
54	577
55	587
56	593
57	599

[2, 5, 11, 17, 19, 29, 37, 41, 53, 67, 71, 83, 89, 101, 103, 107, 109, 127, 131, 149, 151, 173, 179, 181, 197, 199, 227, 229, 233, 239, 257, 263, 269, 271, 293, 331, 337, 367, 373, 379, 401, 409, 419, 443, 449, 457, 461, 487, 491, 499, 503, 541, 547, 577, 587, 593, 599]

cp's OEIS Frontend

A307508 Primes p for which the continued fraction expansion of sqrt(p) does not have a 1 in the second position.

Table of values

List of values

n	a(n)
1	2
2	5
3	11
4	17
5	19
6	29
7	37
8	41
9	53
10	67
11	71
12	83
13	89
14	101
15	103
16	107
17	109
18	127
19	131
20	149
21	151
22	173
23	179
24	181
25	197
26	199
27	227
28	229
29	233
30	239
31	257
32	263
33	269
34	271
35	293
36	331
37	337
38	367
39	373
40	379
41	401
42	409
43	419
44	443
45	449
46	457
47	461
48	487
49	491
50	499
51	503
52	541
53	547
54	577
55	587
56	593
57	599

n	a(n)
1	2
2	5
3	11
4	17
5	19
6	29
7	37
8	41
9	53
10	67
11	71
12	83
13	89
14	101
15	103
16	107
17	109
18	127
19	131
20	149
21	151
22	173
23	179
24	181
25	197
26	199
27	227
28	229
29	233
30	239
31	257
32	263
33	269
34	271
35	293
36	331
37	337
38	367
39	373
40	379
41	401
42	409
43	419
44	443
45	449
46	457
47	461
48	487
49	491
50	499
51	503
52	541
53	547
54	577
55	587
56	593
57	599

n	a(n)
1	2
2	5
3	11
4	17
5	19
6	29
7	37
8	41
9	53
10	67
11	71
12	83
13	89
14	101
15	103
16	107
17	109
18	127
19	131
20	149
21	151
22	173
23	179
24	181
25	197
26	199
27	227
28	229
29	233
30	239
31	257
32	263
33	269
34	271
35	293
36	331
37	337
38	367
39	373
40	379
41	401
42	409
43	419
44	443
45	449
46	457
47	461
48	487
49	491
50	499
51	503
52	541
53	547
54	577
55	587
56	593
57	599