OFFSET
0,2
COMMENTS
Inverse binomial transform of A167875.
FORMULA
a(0) = 1, a(1) = 3, a(2) = 4, a(3) = 2, a(n) = 0 for n > 3.
G.f.: (1+x)*(1+2*x+2*x^2).
PROG
(PARI) {concat([1, 3, 4, 2], vector(99))}
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Klaus Brockhaus, Nov 14 2009
STATUS
approved