92599domain: NAppears in sequencesExpansion of 1/((1+x)*(1-2*x+2*x^2-2*x^3)).at n=28A052942The Gi4 sums of the Pell-Jacobsthal triangle A013609.at n=7A180677Number of nX4 0..1 arrays with every element equal to 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.at n=14A298096