84846domain: NAppears in sequencesDifference between the (10^n)-th prime and the Riemann-Gram approximation of the (10^n)-th prime.at n=10A123233Number of (n+2) X (1+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001.at n=11A260537