44158domain: NAppears in sequencesDifference between pi(10^n) and the integer nearest to 10^n / log(10^n).at n=6A057835Number of (n+2) X (2+2) 0..1 arrays with no 3 X 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 0 or 3 and no column sum 0 or 3.at n=15A258960