OFFSET
1,2
LINKS
C. Deugau and F. Ruskey, Complete k-ary Trees and Generalized Meta-Fibonacci Sequences, J. Integer Seq., Vol. 12. [This is a later version than that in the GenMetaFib.html link]
C. Deugau and F. Ruskey, Complete k-ary Trees and Generalized Meta-Fibonacci Sequences
FORMULA
g.f.: P(z) = z / (1-z) * (1 + sum(z^(m^3) * (1 + 1 / (1 - z^(m^3))), m=0..infinity))
MAPLE
p := proc(n)
if n=1 then return 1; end if;
for j from p(n-1)+1 to infinity do
if A120504(j) = n then return j; fi; od;
end proc;
CROSSREFS
KEYWORD
nonn
AUTHOR
Frank Ruskey and Chris Deugau (deugaucj(AT)uvic.ca), Jun 20 2006
STATUS
approved