2506180domain: NAppears in sequencesInteger quotients of k^2 by the sum of the prime distinct divisors of k^2+1, where k = A196219(n).at n=32A196220Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically.at n=27A253508