A071305 - cp's OEIS frontend

A071305 a(n) = (1/2) * (number of n X n 0..5 matrices M with MM' mod 6 = I, where M' is the transpose of M and I is the n X n identity matrix).

n	a(n)
1	1
2	8
3	144
4	27648
5	37324800
6	300987187200
7	13311459341107200
8	3680352278629318656000
9	6233449457837263300853760000
10	63077322283364184001573740871680000
11	3794639489522011031097665950031114403840000
12	1374795579913014967183977466315375129593674465280000

[1, 8, 144, 27648, 37324800, 300987187200, 13311459341107200, 3680352278629318656000, 6233449457837263300853760000, 63077322283364184001573740871680000, 3794639489522011031097665950031114403840000, 1374795579913014967183977466315375129593674465280000]

cp's OEIS Frontend

A071305 a(n) = (1/2) * (number of n X n 0..5 matrices M with MM' mod 6 = I, where M' is the transpose of M and I is the n X n identity matrix).

Table of values

List of values