%N Sum of the sizes of the kernels of all integer partitions of n.
%C The kernel of an integer partition is the intersection of its Ferrers diagram and of the Ferrers diagram of its conjugate. It includes the Durfee square, which is the largest square fitting into the kernel.
%H Alois P. Heinz, <a href="/A218904/b218904.txt">Table of n, a(n) for n = 1..70</a>
%Y Row sums of A218905.
%A _Olivier Gérard_, Nov 08 2012
%E Extended beyond a(20) by _Alois P. Heinz_, Nov 08 2012