A262365 - cp's OEIS frontend

A262365 A(n,k) is the n-th prime whose binary expansion begins with the binary expansion of k; square array A(n,k), n>=1, k>=1, read by antidiagonals.

n	a(n)
1	2
2	2
3	3
4	3
5	5
6	5
7	17
8	7
9	11
10	7
11	5
12	19
13	13
14	17
15	11
16	13
17	11
18	37
19	29
20	19
21	13
22	7
23	53
24	23
25	67
26	31
27	23
28	17
29	17
30	29
31	97
32	41
33	71
34	53
35	37
36	19
37	19
38	67
39	31
40	101
41	43
42	73
43	59
44	41
45	23
46	41
47	37
48	71
49	59
50	103
51	47
52	79
53	61
54	43
55	29
56	11
57	43
58	73
59	131
60	61
61	107
62	83
63	131
64	97
65	47
66	31

[2, 2, 3, 3, 5, 5, 17, 7, 11, 7, 5, 19, 13, 17, 11, 13, 11, 37, 29, 19, 13, 7, 53, 23, 67, 31, 23, 17, 17, 29, 97, 41, 71, 53, 37, 19, 19, 67, 31, 101, 43, 73, 59, 41, 23, 41, 37, 71, 59, 103, 47, 79, 61, 43, 29, 11, 43, 73, 131, 61, 107, 83, 131, 97, 47, 31]

cp's OEIS Frontend

A262365 A(n,k) is the n-th prime whose binary expansion begins with the binary expansion of k; square array A(n,k), n>=1, k>=1, read by antidiagonals.

Table of values

List of values

n	a(n)
1	2
2	2
3	3
4	3
5	5
6	5
7	17
8	7
9	11
10	7
11	5
12	19
13	13
14	17
15	11
16	13
17	11
18	37
19	29
20	19
21	13
22	7
23	53
24	23
25	67
26	31
27	23
28	17
29	17
30	29
31	97
32	41
33	71
34	53
35	37
36	19
37	19
38	67
39	31
40	101
41	43
42	73
43	59
44	41
45	23
46	41
47	37
48	71
49	59
50	103
51	47
52	79
53	61
54	43
55	29
56	11
57	43
58	73
59	131
60	61
61	107
62	83
63	131
64	97
65	47
66	31

n	a(n)
1	2
2	2
3	3
4	3
5	5
6	5
7	17
8	7
9	11
10	7
11	5
12	19
13	13
14	17
15	11
16	13
17	11
18	37
19	29
20	19
21	13
22	7
23	53
24	23
25	67
26	31
27	23
28	17
29	17
30	29
31	97
32	41
33	71
34	53
35	37
36	19
37	19
38	67
39	31
40	101
41	43
42	73
43	59
44	41
45	23
46	41
47	37
48	71
49	59
50	103
51	47
52	79
53	61
54	43
55	29
56	11
57	43
58	73
59	131
60	61
61	107
62	83
63	131
64	97
65	47
66	31

n	a(n)
1	2
2	2
3	3
4	3
5	5
6	5
7	17
8	7
9	11
10	7
11	5
12	19
13	13
14	17
15	11
16	13
17	11
18	37
19	29
20	19
21	13
22	7
23	53
24	23
25	67
26	31
27	23
28	17
29	17
30	29
31	97
32	41
33	71
34	53
35	37
36	19
37	19
38	67
39	31
40	101
41	43
42	73
43	59
44	41
45	23
46	41
47	37
48	71
49	59
50	103
51	47
52	79
53	61
54	43
55	29
56	11
57	43
58	73
59	131
60	61
61	107
62	83
63	131
64	97
65	47
66	31