8012941domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of (n+2)X(5+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 2 and no column sum 2.at n=35A255225E.g.f. A(x) satisfies: [x^n] A(x)^n = (2*n - 1) * [x^(n-1)] A(x)^n for n>=1.at n=6A301387Prime numbersat n=540594