A274458 - cp's OEIS frontend

A274458 White to move: Number of up to 5 man GBR-codes on an 8x8 chessboard having longest checkmate under perfect play in n moves if any such checkmate exists.

n	a(n)
1	20
2	6
3	3
4	8
5	3
6	2
7	6
8	5
9	5
10	4
11	0
12	1
13	3
14	1
15	3
16	6
17	5
18	0
19	5
20	3
21	6
22	2
23	1
24	3
25	1
26	1
27	1
28	6
29	11
30	7
31	4
32	3
33	9
34	3
35	3
36	2
37	3
38	2
39	2
40	7
41	7
42	0
43	5
44	1
45	1
46	0
47	0
48	0
49	1
50	3
51	2
52	0
53	1
54	2
55	2
56	1
57	1
58	1
59	0
60	0
61	0
62	0
63	0
64	0
65	1
66	0
67	3
68	2
69	1
70	2
71	0
72	1
73	1
74	3
75	0
76	0
77	0
78	1
79	0
80	0
81	1
82	0
83	1
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	1
98	0
99	0
100	1
101	0
102	0
103	1
104	2
105	1
106	0
107	1
108	0
109	0
110	0
111	0
112	0
113	0
114	0
115	1
116	0
117	0
118	0
119	0
120	0
121	0
122	0
123	0
124	2
125	0
126	0
127	1

[20, 6, 3, 8, 3, 2, 6, 5, 5, 4, 0, 1, 3, 1, 3, 6, 5, 0, 5, 3, 6, 2, 1, 3, 1, 1, 1, 6, 11, 7, 4, 3, 9, 3, 3, 2, 3, 2, 2, 7, 7, 0, 5, 1, 1, 0, 0, 0, 1, 3, 2, 0, 1, 2, 2, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 3, 2, 1, 2, 0, 1, 1, 3, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 2, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 1]

cp's OEIS Frontend

A274458 White to move: Number of up to 5 man GBR-codes on an 8x8 chessboard having longest checkmate under perfect play in n moves if any such checkmate exists.

Table of values

List of values

n	a(n)
1	20
2	6
3	3
4	8
5	3
6	2
7	6
8	5
9	5
10	4
11	0
12	1
13	3
14	1
15	3
16	6
17	5
18	0
19	5
20	3
21	6
22	2
23	1
24	3
25	1
26	1
27	1
28	6
29	11
30	7
31	4
32	3
33	9
34	3
35	3
36	2
37	3
38	2
39	2
40	7
41	7
42	0
43	5
44	1
45	1
46	0
47	0
48	0
49	1
50	3
51	2
52	0
53	1
54	2
55	2
56	1
57	1
58	1
59	0
60	0
61	0
62	0
63	0
64	0
65	1
66	0
67	3
68	2
69	1
70	2
71	0
72	1
73	1
74	3
75	0
76	0
77	0
78	1
79	0
80	0
81	1
82	0
83	1
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	1
98	0
99	0
100	1
101	0
102	0
103	1
104	2
105	1
106	0
107	1
108	0
109	0
110	0
111	0
112	0
113	0
114	0
115	1
116	0
117	0
118	0
119	0
120	0
121	0
122	0
123	0
124	2
125	0
126	0
127	1

n	a(n)
1	20
2	6
3	3
4	8
5	3
6	2
7	6
8	5
9	5
10	4
11	0
12	1
13	3
14	1
15	3
16	6
17	5
18	0
19	5
20	3
21	6
22	2
23	1
24	3
25	1
26	1
27	1
28	6
29	11
30	7
31	4
32	3
33	9
34	3
35	3
36	2
37	3
38	2
39	2
40	7
41	7
42	0
43	5
44	1
45	1
46	0
47	0
48	0
49	1
50	3
51	2
52	0
53	1
54	2
55	2
56	1
57	1
58	1
59	0
60	0
61	0
62	0
63	0
64	0
65	1
66	0
67	3
68	2
69	1
70	2
71	0
72	1
73	1
74	3
75	0
76	0
77	0
78	1
79	0
80	0
81	1
82	0
83	1
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	1
98	0
99	0
100	1
101	0
102	0
103	1
104	2
105	1
106	0
107	1
108	0
109	0
110	0
111	0
112	0
113	0
114	0
115	1
116	0
117	0
118	0
119	0
120	0
121	0
122	0
123	0
124	2
125	0
126	0
127	1

n	a(n)
1	20
2	6
3	3
4	8
5	3
6	2
7	6
8	5
9	5
10	4
11	0
12	1
13	3
14	1
15	3
16	6
17	5
18	0
19	5
20	3
21	6
22	2
23	1
24	3
25	1
26	1
27	1
28	6
29	11
30	7
31	4
32	3
33	9
34	3
35	3
36	2
37	3
38	2
39	2
40	7
41	7
42	0
43	5
44	1
45	1
46	0
47	0
48	0
49	1
50	3
51	2
52	0
53	1
54	2
55	2
56	1
57	1
58	1
59	0
60	0
61	0
62	0
63	0
64	0
65	1
66	0
67	3
68	2
69	1
70	2
71	0
72	1
73	1
74	3
75	0
76	0
77	0
78	1
79	0
80	0
81	1
82	0
83	1
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	1
98	0
99	0
100	1
101	0
102	0
103	1
104	2
105	1
106	0
107	1
108	0
109	0
110	0
111	0
112	0
113	0
114	0
115	1
116	0
117	0
118	0
119	0
120	0
121	0
122	0
123	0
124	2
125	0
126	0
127	1