A051237 - cp's OEIS frontend

A051237 Lexicographically earliest prime pyramid, read by rows.

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	3
10	4
11	1
12	4
13	3
14	2
15	5
16	1
17	4
18	3
19	2
20	5
21	6
22	1
23	4
24	3
25	2
26	5
27	6
28	7
29	1
30	2
31	3
32	4
33	7
34	6
35	5
36	8
37	1
38	2
39	3
40	4
41	7
42	6
43	5
44	8
45	9
46	1
47	2
48	3
49	4
50	7
51	6
52	5
53	8
54	9
55	10
56	1
57	2
58	3
59	4
60	7
61	10
62	9
63	8
64	5
65	6
66	11
67	1
68	2
69	3
70	4
71	7
72	10
73	9
74	8
75	5
76	6
77	11
78	12
79	1
80	2
81	3
82	4
83	7
84	6
85	5
86	12
87	11
88	8
89	9
90	10
91	13
92	1
93	2
94	3
95	4
96	7
97	6
98	13
99	10

[1, 1, 2, 1, 2, 3, 1, 2, 3, 4, 1, 4, 3, 2, 5, 1, 4, 3, 2, 5, 6, 1, 4, 3, 2, 5, 6, 7, 1, 2, 3, 4, 7, 6, 5, 8, 1, 2, 3, 4, 7, 6, 5, 8, 9, 1, 2, 3, 4, 7, 6, 5, 8, 9, 10, 1, 2, 3, 4, 7, 10, 9, 8, 5, 6, 11, 1, 2, 3, 4, 7, 10, 9, 8, 5, 6, 11, 12, 1, 2, 3, 4, 7, 6, 5, 12, 11, 8, 9, 10, 13, 1, 2, 3, 4, 7, 6, 13, 10]

cp's OEIS Frontend

A051237 Lexicographically earliest prime pyramid, read by rows.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	3
10	4
11	1
12	4
13	3
14	2
15	5
16	1
17	4
18	3
19	2
20	5
21	6
22	1
23	4
24	3
25	2
26	5
27	6
28	7
29	1
30	2
31	3
32	4
33	7
34	6
35	5
36	8
37	1
38	2
39	3
40	4
41	7
42	6
43	5
44	8
45	9
46	1
47	2
48	3
49	4
50	7
51	6
52	5
53	8
54	9
55	10
56	1
57	2
58	3
59	4
60	7
61	10
62	9
63	8
64	5
65	6
66	11
67	1
68	2
69	3
70	4
71	7
72	10
73	9
74	8
75	5
76	6
77	11
78	12
79	1
80	2
81	3
82	4
83	7
84	6
85	5
86	12
87	11
88	8
89	9
90	10
91	13
92	1
93	2
94	3
95	4
96	7
97	6
98	13
99	10

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	3
10	4
11	1
12	4
13	3
14	2
15	5
16	1
17	4
18	3
19	2
20	5
21	6
22	1
23	4
24	3
25	2
26	5
27	6
28	7
29	1
30	2
31	3
32	4
33	7
34	6
35	5
36	8
37	1
38	2
39	3
40	4
41	7
42	6
43	5
44	8
45	9
46	1
47	2
48	3
49	4
50	7
51	6
52	5
53	8
54	9
55	10
56	1
57	2
58	3
59	4
60	7
61	10
62	9
63	8
64	5
65	6
66	11
67	1
68	2
69	3
70	4
71	7
72	10
73	9
74	8
75	5
76	6
77	11
78	12
79	1
80	2
81	3
82	4
83	7
84	6
85	5
86	12
87	11
88	8
89	9
90	10
91	13
92	1
93	2
94	3
95	4
96	7
97	6
98	13
99	10

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	3
10	4
11	1
12	4
13	3
14	2
15	5
16	1
17	4
18	3
19	2
20	5
21	6
22	1
23	4
24	3
25	2
26	5
27	6
28	7
29	1
30	2
31	3
32	4
33	7
34	6
35	5
36	8
37	1
38	2
39	3
40	4
41	7
42	6
43	5
44	8
45	9
46	1
47	2
48	3
49	4
50	7
51	6
52	5
53	8
54	9
55	10
56	1
57	2
58	3
59	4
60	7
61	10
62	9
63	8
64	5
65	6
66	11
67	1
68	2
69	3
70	4
71	7
72	10
73	9
74	8
75	5
76	6
77	11
78	12
79	1
80	2
81	3
82	4
83	7
84	6
85	5
86	12
87	11
88	8
89	9
90	10
91	13
92	1
93	2
94	3
95	4
96	7
97	6
98	13
99	10