OFFSET
1,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..100
FORMULA
a(n) = Sum_{k=1..n} k * A064315(n,k).
a(n) ~ n!. - Vaclav Kotesovec, Sep 06 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
David W. Wilson, Sep 07 2001
STATUS
approved