A384078 - cp's OEIS frontend

A384078 a(n) = pos(M(n)), where M(n) is the n X n left circulant matrix with (row 1) = (1,3,5,7, ..., 2n - 1), and pos(M(n)) is the positive part of the determinant of M(n); see A380661.

n	a(n)
1	1
2	1
3	45
4	4716
5	250200
6	19423560
7	2462535768
8	406262340288
9	84196030473216
10	21703670967664000
11	6808563893605222144
12	2552145158372103507456
13	1126590812208410998119424
14	578462173661889165983466496
15	341831891354409385226121600000

[1, 1, 45, 4716, 250200, 19423560, 2462535768, 406262340288, 84196030473216, 21703670967664000, 6808563893605222144, 2552145158372103507456, 1126590812208410998119424, 578462173661889165983466496, 341831891354409385226121600000]

cp's OEIS Frontend

A384078 a(n) = pos(M(n)), where M(n) is the n X n left circulant matrix with (row 1) = (1,3,5,7, ..., 2n - 1), and pos(M(n)) is the positive part of the determinant of M(n); see A380661.

Table of values

List of values