OFFSET
0,2
LINKS
W. Lang, On generalizations of Stirling number triangles, J. Integer Seqs., Vol. 3 (2000), #00.2.4.
Index entries for linear recurrences with constant coefficients, signature (16, -96, 256, -256).
FORMULA
a(n) = 4^(n-1)*binomial(n+4, 3); G.f. (-1+(1-4*x)^(-4))/(x*4^2).
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
STATUS
approved