OFFSET
0,1
LINKS
Daniel Starodubtsev, Table of n, a(n) for n = 0..10000
FORMULA
a(n) ~ n. - Charles R Greathouse IV, Oct 23 2015
PROG
(PARI) is(n)=while(n>7, if(bitand(n, 7)==0, return(1)); n>>=1); 0 \\ Charles R Greathouse IV, Feb 11 2017
CROSSREFS
KEYWORD
nonn,easy,base
AUTHOR
STATUS
approved