OFFSET
1,1
LINKS
N. J. A. Sloane, Transforms
FORMULA
a(n)=T(n,1), T(n,m)=m/n*sum(k=1..n, T(n-m,k)*2^(n-k)*binomial(n,k)), n>m, T(n,n)=2^n. [Vladimir Kruchinin, Aug 08 2013]
PROG
(Maxima) T(n, m):=if m=n then 2^m else m/n*sum(T(n-m, k)*2^(n-k)*binomial(n, k), k, 1, n); makelist(T(n, 1), n, 1, 15); [Vladimir Kruchinin, Aug 08 2013]
CROSSREFS
KEYWORD
nonn,eigen
AUTHOR
STATUS
approved