A292675 - cp's OEIS frontend

A292675 Least number of symbols required to fill a grid of size n X n row by row in the greedy way such that in any row or column or rectangular 5 X 5 block no symbol occurs twice.

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

[1, 4, 9, 16, 25, 27, 29, 32, 33, 33, 33, 34, 35, 35, 35, 36, 37, 38, 40, 40, 40, 40, 40, 40, 40, 40, 41, 43, 42, 42, 46, 47, 48, 52, 53, 53, 54, 57, 58, 58, 59, 62, 63, 64, 66, 68, 70, 72, 73, 74, 75, 75, 78, 78, 79, 80, 82, 83, 85, 86, 88, 91, 92, 97, 96, 98]

cp's OEIS Frontend

A292675 Least number of symbols required to fill a grid of size n X n row by row in the greedy way such that in any row or column or rectangular 5 X 5 block no symbol occurs twice.

Table of values

List of values

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

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

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