OFFSET
0,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..698
FORMULA
a(n) = A014263(10^n).
MAPLE
b:= proc(n) local m, r; m, r:= n-1, 0;
while m>0 do r:= 2*irem(m, 5, 'm'), r od;
parse(cat(r))/10
end:
a:= n-> b(10^n):
seq(a(n), n=0..20);
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Alois P. Heinz, Jan 17 2020
STATUS
approved