OFFSET
1,1
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 1..28
MATHEMATICA
Table[Permanent[Table[(i + j)!, {i, 1, n}, {j, 1, n}]], {n, 1, 15}]
PROG
(PARI) {a(n) = matpermanent(matrix(n, n, i, j, (i+j)!))}
for(n=1, 10, print1(a(n), ", ")) \\ Vaclav Kotesovec, Dec 21 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Apr 17 2018
STATUS
approved