OFFSET
1,16
LINKS
Altug Alkan, Table of n, a(n) for n = 1..10000
EXAMPLE
a(16) = 2 because 16 = 4 + 12 and 16 = 8 + 8 are only corresponding solutions.
PROG
(PARI) a(n) = sum(k=1, n\2, !issquarefree(k) && !issquarefree(n-k));
CROSSREFS
KEYWORD
nonn
AUTHOR
Altug Alkan, Feb 13 2017
STATUS
approved