1,8

Table of n, a(n) for n=1..72.

(PARI) a(n)=if(n<0, 0, s=n; c=1; while(floor(s*Pi)%n>0, s=floor(s*Pi); c++); c)

Sequence in context: A021932 A244675 A065472 * A096151 A021567 A019619

Adjacent sequences: A081109 A081110 A081111 * A081113 A081114 A081115

nonn

Benoit Cloitre, Apr 15 2003

approved