396718580736domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=11A236991Least b such that b^(2^n) + 1 is an odd Pierpont prime (A005109).at n=10A338931