A125766 - cp's OEIS frontend

A125766 Consider the array T(n, m) = m-th prime of the form n*i(i+1)/2 +- 1. This sequence is read by antidiagonals.

n	a(n)
1	2
2	3
3	5
4	2
5	5
6	7
7	3
8	17
9	7
10	11
11	29
12	5
13	19
14	11
15	29
16	5
17	31
18	11
19	29
20	13
21	37
22	41
23	7
24	139
25	13
26	31
27	19
28	67
29	7
30	43
31	17
32	179
33	23
34	83
35	29
36	79
37	53
38	23
39	71
40	19
41	181
42	41
43	107
44	31
45	137
46	11
47	89
48	47
49	197
50	37
51	331
52	59
53	109
54	41
55	191
56	67
57	29
58	251
59	79
60	251
61	59
62	389
63	61
64	197
65	43
66	211
67	11
68	109
69	31

[2, 3, 5, 2, 5, 7, 3, 17, 7, 11, 29, 5, 19, 11, 29, 5, 31, 11, 29, 13, 37, 41, 7, 139, 13, 31, 19, 67, 7, 43, 17, 179, 23, 83, 29, 79, 53, 23, 71, 19, 181, 41, 107, 31, 137, 11, 89, 47, 197, 37, 331, 59, 109, 41, 191, 67, 29, 251, 79, 251, 59, 389, 61, 197, 43, 211, 11, 109, 31]

cp's OEIS Frontend

A125766 Consider the array T(n, m) = m-th prime of the form n*i(i+1)/2 +- 1. This sequence is read by antidiagonals.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	2
5	5
6	7
7	3
8	17
9	7
10	11
11	29
12	5
13	19
14	11
15	29
16	5
17	31
18	11
19	29
20	13
21	37
22	41
23	7
24	139
25	13
26	31
27	19
28	67
29	7
30	43
31	17
32	179
33	23
34	83
35	29
36	79
37	53
38	23
39	71
40	19
41	181
42	41
43	107
44	31
45	137
46	11
47	89
48	47
49	197
50	37
51	331
52	59
53	109
54	41
55	191
56	67
57	29
58	251
59	79
60	251
61	59
62	389
63	61
64	197
65	43
66	211
67	11
68	109
69	31

n	a(n)
1	2
2	3
3	5
4	2
5	5
6	7
7	3
8	17
9	7
10	11
11	29
12	5
13	19
14	11
15	29
16	5
17	31
18	11
19	29
20	13
21	37
22	41
23	7
24	139
25	13
26	31
27	19
28	67
29	7
30	43
31	17
32	179
33	23
34	83
35	29
36	79
37	53
38	23
39	71
40	19
41	181
42	41
43	107
44	31
45	137
46	11
47	89
48	47
49	197
50	37
51	331
52	59
53	109
54	41
55	191
56	67
57	29
58	251
59	79
60	251
61	59
62	389
63	61
64	197
65	43
66	211
67	11
68	109
69	31

n	a(n)
1	2
2	3
3	5
4	2
5	5
6	7
7	3
8	17
9	7
10	11
11	29
12	5
13	19
14	11
15	29
16	5
17	31
18	11
19	29
20	13
21	37
22	41
23	7
24	139
25	13
26	31
27	19
28	67
29	7
30	43
31	17
32	179
33	23
34	83
35	29
36	79
37	53
38	23
39	71
40	19
41	181
42	41
43	107
44	31
45	137
46	11
47	89
48	47
49	197
50	37
51	331
52	59
53	109
54	41
55	191
56	67
57	29
58	251
59	79
60	251
61	59
62	389
63	61
64	197
65	43
66	211
67	11
68	109
69	31