OFFSET
1,2
COMMENTS
A227782 is the main entry for this sequence.
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
PROG
(PARI) apply(n->if(n%8==7, 4, if(n>1, 2, 1)), select(issquarefree, vector(200, i, i)))
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Charles R Greathouse IV, Jul 31 2013
STATUS
approved