A288530 - cp's OEIS frontend

A288530 Triangle read by rows in reverse order: T(n,k), (0 <= k <= n), in which each term is the least nonnegative integer such that no row, column, diagonal, or antidiagonal contains a repeated term.

n	a(n)
0	0
1	1
2	2
3	2
4	0
5	3
6	3
7	1
8	4
9	5
10	4
11	5
12	0
13	2
14	1
15	5
16	3
17	1
18	4
19	6
20	7
21	6
22	4
23	2
24	0
25	3
26	8
27	9
28	7
29	8
30	9
31	1
32	4
33	5
34	10
35	6
36	8
37	6
38	5
39	3
40	0
41	2
42	7
43	9
44	11
45	9
46	7
47	10
48	11
49	2
50	6
51	8
52	12
53	3
54	4
55	10
56	11
57	6
58	8
59	7
60	0
61	12
62	13
63	14
64	5
65	15
66	11
67	9
68	7
69	10
70	5
71	1
72	6
73	8
74	15
75	16
76	12
77	13
78	12
79	10
80	8
81	6
82	9
83	3
84	0
85	11
86	5
87	7
88	13
89	14
90	16

[0, 1, 2, 2, 0, 3, 3, 1, 4, 5, 4, 5, 0, 2, 1, 5, 3, 1, 4, 6, 7, 6, 4, 2, 0, 3, 8, 9, 7, 8, 9, 1, 4, 5, 10, 6, 8, 6, 5, 3, 0, 2, 7, 9, 11, 9, 7, 10, 11, 2, 6, 8, 12, 3, 4, 10, 11, 6, 8, 7, 0, 12, 13, 14, 5, 15, 11, 9, 7, 10, 5, 1, 6, 8, 15, 16, 12, 13, 12, 10, 8, 6, 9, 3, 0, 11, 5, 7, 13, 14, 16]

cp's OEIS Frontend

A288530 Triangle read by rows in reverse order: T(n,k), (0 <= k <= n), in which each term is the least nonnegative integer such that no row, column, diagonal, or antidiagonal contains a repeated term.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	2
4	0
5	3
6	3
7	1
8	4
9	5
10	4
11	5
12	0
13	2
14	1
15	5
16	3
17	1
18	4
19	6
20	7
21	6
22	4
23	2
24	0
25	3
26	8
27	9
28	7
29	8
30	9
31	1
32	4
33	5
34	10
35	6
36	8
37	6
38	5
39	3
40	0
41	2
42	7
43	9
44	11
45	9
46	7
47	10
48	11
49	2
50	6
51	8
52	12
53	3
54	4
55	10
56	11
57	6
58	8
59	7
60	0
61	12
62	13
63	14
64	5
65	15
66	11
67	9
68	7
69	10
70	5
71	1
72	6
73	8
74	15
75	16
76	12
77	13
78	12
79	10
80	8
81	6
82	9
83	3
84	0
85	11
86	5
87	7
88	13
89	14
90	16

n	a(n)
0	0
1	1
2	2
3	2
4	0
5	3
6	3
7	1
8	4
9	5
10	4
11	5
12	0
13	2
14	1
15	5
16	3
17	1
18	4
19	6
20	7
21	6
22	4
23	2
24	0
25	3
26	8
27	9
28	7
29	8
30	9
31	1
32	4
33	5
34	10
35	6
36	8
37	6
38	5
39	3
40	0
41	2
42	7
43	9
44	11
45	9
46	7
47	10
48	11
49	2
50	6
51	8
52	12
53	3
54	4
55	10
56	11
57	6
58	8
59	7
60	0
61	12
62	13
63	14
64	5
65	15
66	11
67	9
68	7
69	10
70	5
71	1
72	6
73	8
74	15
75	16
76	12
77	13
78	12
79	10
80	8
81	6
82	9
83	3
84	0
85	11
86	5
87	7
88	13
89	14
90	16

n	a(n)
0	0
1	1
2	2
3	2
4	0
5	3
6	3
7	1
8	4
9	5
10	4
11	5
12	0
13	2
14	1
15	5
16	3
17	1
18	4
19	6
20	7
21	6
22	4
23	2
24	0
25	3
26	8
27	9
28	7
29	8
30	9
31	1
32	4
33	5
34	10
35	6
36	8
37	6
38	5
39	3
40	0
41	2
42	7
43	9
44	11
45	9
46	7
47	10
48	11
49	2
50	6
51	8
52	12
53	3
54	4
55	10
56	11
57	6
58	8
59	7
60	0
61	12
62	13
63	14
64	5
65	15
66	11
67	9
68	7
69	10
70	5
71	1
72	6
73	8
74	15
75	16
76	12
77	13
78	12
79	10
80	8
81	6
82	9
83	3
84	0
85	11
86	5
87	7
88	13
89	14
90	16