OFFSET
1,2
FORMULA
For n>1: a(n) = (a(n-1)*2^(n-2)*10^(1+floor(log_10 (2^(n-1))))+2^n)/(2^n) - Sam Alexander, Feb 27 2005
EXAMPLE
a(6) = 1248163264/64=19502551.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Nov 05 2002
STATUS
approved