A092557 - cp's OEIS frontend

A092557 Triangle read by rows: T(1,1) = 1; for n>=2, write the first n^2 integers in an n X n array beginning with 1 in the upper left proceeding left to right and top to bottom; then T(n,k) is the last prime in the k-th row.

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	3
8	7
9	11
10	13
11	5
12	7
13	13
14	19
15	23
16	5
17	11
18	17
19	23
20	29
21	31
22	7
23	13
24	19
25	23
26	31
27	41
28	47
29	7
30	13
31	23
32	31
33	37
34	47
35	53
36	61
37	7
38	17
39	23
40	31
41	43
42	53
43	61
44	71
45	79
46	7
47	19
48	29
49	37
50	47
51	59
52	67
53	79
54	89
55	97
56	11
57	19
58	31
59	43
60	53
61	61
62	73
63	83
64	97
65	109
66	113
67	11
68	23
69	31
70	47
71	59
72	71
73	83
74	89

[1, 2, 3, 3, 5, 7, 3, 7, 11, 13, 5, 7, 13, 19, 23, 5, 11, 17, 23, 29, 31, 7, 13, 19, 23, 31, 41, 47, 7, 13, 23, 31, 37, 47, 53, 61, 7, 17, 23, 31, 43, 53, 61, 71, 79, 7, 19, 29, 37, 47, 59, 67, 79, 89, 97, 11, 19, 31, 43, 53, 61, 73, 83, 97, 109, 113, 11, 23, 31, 47, 59, 71, 83, 89]

cp's OEIS Frontend

A092557 Triangle read by rows: T(1,1) = 1; for n>=2, write the first n^2 integers in an n X n array beginning with 1 in the upper left proceeding left to right and top to bottom; then T(n,k) is the last prime in the k-th row.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	3
8	7
9	11
10	13
11	5
12	7
13	13
14	19
15	23
16	5
17	11
18	17
19	23
20	29
21	31
22	7
23	13
24	19
25	23
26	31
27	41
28	47
29	7
30	13
31	23
32	31
33	37
34	47
35	53
36	61
37	7
38	17
39	23
40	31
41	43
42	53
43	61
44	71
45	79
46	7
47	19
48	29
49	37
50	47
51	59
52	67
53	79
54	89
55	97
56	11
57	19
58	31
59	43
60	53
61	61
62	73
63	83
64	97
65	109
66	113
67	11
68	23
69	31
70	47
71	59
72	71
73	83
74	89

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	3
8	7
9	11
10	13
11	5
12	7
13	13
14	19
15	23
16	5
17	11
18	17
19	23
20	29
21	31
22	7
23	13
24	19
25	23
26	31
27	41
28	47
29	7
30	13
31	23
32	31
33	37
34	47
35	53
36	61
37	7
38	17
39	23
40	31
41	43
42	53
43	61
44	71
45	79
46	7
47	19
48	29
49	37
50	47
51	59
52	67
53	79
54	89
55	97
56	11
57	19
58	31
59	43
60	53
61	61
62	73
63	83
64	97
65	109
66	113
67	11
68	23
69	31
70	47
71	59
72	71
73	83
74	89

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	3
8	7
9	11
10	13
11	5
12	7
13	13
14	19
15	23
16	5
17	11
18	17
19	23
20	29
21	31
22	7
23	13
24	19
25	23
26	31
27	41
28	47
29	7
30	13
31	23
32	31
33	37
34	47
35	53
36	61
37	7
38	17
39	23
40	31
41	43
42	53
43	61
44	71
45	79
46	7
47	19
48	29
49	37
50	47
51	59
52	67
53	79
54	89
55	97
56	11
57	19
58	31
59	43
60	53
61	61
62	73
63	83
64	97
65	109
66	113
67	11
68	23
69	31
70	47
71	59
72	71
73	83
74	89