OFFSET
8,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 8..180
EXAMPLE
a(8) = 1: 78563412.
a(9) = 48: 189674523, 289674513, 389674512, ..., 896745132, 896745231, 978563412.
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Nov 11 2015
STATUS
approved