OFFSET
1,1
LINKS
Indranil Ghosh, Table of n, a(n) for n = 1..31180
EXAMPLE
n=12: a(12) = gcd(4096,6904) = 8.
MATHEMATICA
nd[x_, y_] := 10*x+y tn[x_] := Fold[nd, 0, x] red[x_] := Reverse[IntegerDigits[x]] Table[GCD[2^w, tn[red[2^w]]], {w, 1, 128}]
CROSSREFS
KEYWORD
nonn,less,base
AUTHOR
Labos Elemer, Jun 07 2002
STATUS
approved