OFFSET
1,5
REFERENCES
Martin Gardner, Mathematical Circus, Random House, New York, 1981, p. 165.
LINKS
Michael De Vlieger, Table of n, a(n) for n = 1..21
MATHEMATICA
t={0, 1, 1}; Do[AppendTo[t, t[[-3]]*t[[-2]]+t[[-2]]*t[[-1]]], {n, 13}]; t (* Vladimir Joseph Stephan Orlovsky, Feb 03 2012 *)
Nest[Append[#, #[[-1]] #[[-2]] + #[[-2]] #[[-3]]] &, {0, 1, 1}, 12] (* Michael De Vlieger, Dec 17 2017 *)
RecurrenceTable[{a[1]==0, a[2]==a[3]==1, a[n]==a[n-1]a[n-2]+a[n-2]a[n-3]}, a, {n, 15}] (* Harvey P. Dale, Oct 04 2020 *)
PROG
(MATLAB)
function y=fib(n)
%Generates running geometric numbers
fz(1)=0; fz(2)=1; fz(3)=1;
for k=4:n
fz(k)=fz(k-2)*(fz(k-1)+fz(k-3));
end
y=fz(n);
CROSSREFS
KEYWORD
nonn
AUTHOR
Matt Wynne (matwyn(AT)verizon.net), Aug 11 2008
STATUS
approved