A280172 - cp's OEIS frontend

A280172 Lexicographically earliest table of positive integers read by antidiagonals such that no row or column contains a repeated term.

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

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

cp's OEIS Frontend

A280172 Lexicographically earliest table of positive integers read by antidiagonals such that no row or column contains a repeated term.

Table of values

List of values

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

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

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