86229domain: NAppears in sequencesIndices of primes in sequence defined by A(0) = 47, A(n) = 10*A(n-1) - 53 for n > 0.at n=16A101717Number of (n+2)X(3+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00010101 or 01010101.at n=10A261287