A362073 - cp's OEIS frontend

A362073 a(n) is the permanent of the n X n symmetric matrix M(n) whose generic element M[i,j] = digsum(i*j).

n	a(n)
0	1
1	1
2	8
3	216
4	7344
5	168183
6	7226091
7	506792295
8	43261224876
9	5520748306176
10	170835815638728
11	19632554202684096
12	2228687316428293152
13	347514692118635694888
14	62201193604462666921968
15	8113764691750577654439864
16	1557556394182730485102253088
17	348394812690307787609428395792

[1, 1, 8, 216, 7344, 168183, 7226091, 506792295, 43261224876, 5520748306176, 170835815638728, 19632554202684096, 2228687316428293152, 347514692118635694888, 62201193604462666921968, 8113764691750577654439864, 1557556394182730485102253088, 348394812690307787609428395792]

cp's OEIS Frontend

A362073 a(n) is the permanent of the n X n symmetric matrix M(n) whose generic element M[i,j] = digsum(i*j).

Table of values

List of values