A278847 - cp's OEIS frontend

A278847 a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = i^2 + j^2.

n	a(n)
0	1
1	2
2	41
3	3176
4	620964
5	246796680
6	174252885732
7	199381727959680
8	345875291854507584
9	864860593764292790400
10	2996169331694350840741440
11	13929521390709644084719495680
12	84659009841182126038701730464000
13	658043094413184868424932006273344000

[1, 2, 41, 3176, 620964, 246796680, 174252885732, 199381727959680, 345875291854507584, 864860593764292790400, 2996169331694350840741440, 13929521390709644084719495680, 84659009841182126038701730464000, 658043094413184868424932006273344000]

cp's OEIS Frontend

A278847 a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = i^2 + j^2.

Table of values

List of values