A278858 - cp's OEIS frontend

A278858 a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = abs(i^2-j^2).

n	a(n)
0	1
1	0
2	9
3	240
4	36864
5	7741440
6	3363235524
7	2203143038208
8	2248347011420160
9	3260265586467690240
10	6578570637254005920000
11	17755898734939822501524480
12	62673017366111480630785474560
13	282641923592380319367599892725760
14	1599753679036773033206787507696238848

[1, 0, 9, 240, 36864, 7741440, 3363235524, 2203143038208, 2248347011420160, 3260265586467690240, 6578570637254005920000, 17755898734939822501524480, 62673017366111480630785474560, 282641923592380319367599892725760, 1599753679036773033206787507696238848]

cp's OEIS Frontend

A278858 a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = abs(i^2-j^2).

Table of values

List of values