A215868 - cp's OEIS frontend

A215868 Number of permutations of 0..floor((n*8-2)/2) on odd squares of an nX8 array such that each row, column, diagonal and (downwards) antidiagonal of odd squares is increasing.

n	a(n)
1	1
2	14
3	110
4	3001
5	26451
6	767560
7	6812794
8	198409297
9	1761748159
10	51317680568
11	455678075546
12	13273519382093
13	117863060852067
14	3433253982499552
15	30485799411892266
16	888026282079787049
17	7885286478349158743

[1, 14, 110, 3001, 26451, 767560, 6812794, 198409297, 1761748159, 51317680568, 455678075546, 13273519382093, 117863060852067, 3433253982499552, 30485799411892266, 888026282079787049, 7885286478349158743]

cp's OEIS Frontend

A215868 Number of permutations of 0..floor((n*8-2)/2) on odd squares of an nX8 array such that each row, column, diagonal and (downwards) antidiagonal of odd squares is increasing.

Table of values

List of values