Kolitsch and Sellers showed recently that a(8)(n), the number of 8-core par
titions of n, is even when n belongs to certain arithmetic progressions. We
prove a similar result for 16-cores. In doing so, we prove the surprising
result that the a(16)(n), given by
[GRAPHICS]
satisfy
a(16)(43046721n+457371400) = a(16)(n) (mod2.)