OFFSET
1,1
LINKS
Harry J. Smith, Table of n, a(n) for n = 1..1000
PROG
(PARI) m(n)=moebius(n)+moebius(n+1)+moebius(n+2);
j=[]; for(n=1, 1000, if(m(n)==1, j=concat(j, n))); j
(PARI) M(n) = moebius(n) + moebius(n + 1) + moebius(n + 2)
{ n=0; for (m=1, 10^9, if(M(m)==1, write("b063849.txt", n++, " ", m); if (n==1000, break)) ) } \\ Harry J. Smith, Sep 01 2009
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Jason Earls, Aug 26 2001
STATUS
approved