A302912 - cp's OEIS frontend

A302912 Determinant of n X n matrix whose main diagonal consists of the first n 8-gonal numbers and all other elements are 1's.

n	a(n)
1	1
2	7
3	140
4	5460
5	349440
6	33196800
7	4381977600
8	766846080000
9	171773521920000
10	47924812615680000
11	16294436289331200000
12	6631835569757798400000
13	3183281073483743232000000
14	1779454120077412466688000000
15	1145968453329853628547072000000

[1, 7, 140, 5460, 349440, 33196800, 4381977600, 766846080000, 171773521920000, 47924812615680000, 16294436289331200000, 6631835569757798400000, 3183281073483743232000000, 1779454120077412466688000000, 1145968453329853628547072000000]

cp's OEIS Frontend

A302912 Determinant of n X n matrix whose main diagonal consists of the first n 8-gonal numbers and all other elements are 1's.

Table of values

List of values