2097162domain: NAppears in sequences1/4 the number of (n+1) X 7 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.at n=40A209725a(n) = 2^n + 10.at n=21A246139Sum of the sizes of all subsets of [n] whose sum is divisible by n.at n=21A309122Fixed points of A324556.at n=16A324557