A259056 - cp's OEIS frontend

A259056 a(n) gives the determinant of a bisymmetric n X n matrix involving the entries 1, 2, ..., A002620(n+1).

n	a(n)
1	1
2	-3
3	-16
4	60
5	384
6	-1680
7	-12288
8	60480
9	491520
10	-2661120
11	-23592960
12	138378240
13	1321205760
14	-8302694400
15	-84557168640
16	564583219200
17	6088116142080
18	-42908324659200
19	-487049291366400
20	3604299271372800

[1, -3, -16, 60, 384, -1680, -12288, 60480, 491520, -2661120, -23592960, 138378240, 1321205760, -8302694400, -84557168640, 564583219200, 6088116142080, -42908324659200, -487049291366400, 3604299271372800]

cp's OEIS Frontend

A259056 a(n) gives the determinant of a bisymmetric n X n matrix involving the entries 1, 2, ..., A002620(n+1).

Table of values

List of values