A381723 - cp's OEIS frontend

A381723 a(n) = pos(M(n)), where M(n) is the n X n matrix with numbers 1, 2, ..., n^2 in order across rows, and pos(M(n)) is the positive part of the determinant of M(n); see A380661.

n	a(n)
1	1
2	4
3	225
4	27728
5	7240350
6	3439197360
7	2686774125000
8	3213645578293248
9	5578750547986764960
10	13484491722080225280000
11	43904082301794970311672000
12	187409206411313292409598115840
13	1025421491750171253824589270768000
14	7056011383804251291488039375527526400

[1, 4, 225, 27728, 7240350, 3439197360, 2686774125000, 3213645578293248, 5578750547986764960, 13484491722080225280000, 43904082301794970311672000, 187409206411313292409598115840, 1025421491750171253824589270768000, 7056011383804251291488039375527526400]

cp's OEIS Frontend

A381723 a(n) = pos(M(n)), where M(n) is the n X n matrix with numbers 1, 2, ..., n^2 in order across rows, and pos(M(n)) is the positive part of the determinant of M(n); see A380661.

Table of values

List of values