A367251 - cp's OEIS frontend

A367251 Lexicographically earliest sequence starting 1,2 which can be arranged in a mirror symmetric array shape such that a(n) is the length of the n-th row and no column has the same value more than once.

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

[1, 2, 1, 2, 1, 2, 3, 3, 3, 1, 4, 1, 2, 5, 2, 3, 6, 3, 7, 1, 4, 4, 1, 8, 5, 5, 1, 4, 9, 4, 1, 6, 6, 5, 10, 5, 1, 2, 7, 7, 2, 1, 6, 11, 6, 1, 2, 7, 12, 7, 2, 1, 13, 3, 8, 8, 3, 4, 9, 9, 4, 14, 1, 2, 5, 10, 10, 5, 2, 1, 3, 8, 15, 8, 3, 4, 9, 16, 9, 4, 17, 6, 11, 11, 6, 1, 2, 5, 10, 18, 10]

cp's OEIS Frontend

A367251 Lexicographically earliest sequence starting 1,2 which can be arranged in a mirror symmetric array shape such that a(n) is the length of the n-th row and no column has the same value more than once.

Table of values

List of values

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

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

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