3817748708domain: NAppears in sequencesExpansion of x^3/(1 - 2*x + x^3 - 2*x^4) = x^3/( (1-2*x)*(1+x)*(1-x+x^2) ).at n=35A113405a(n) = ceiling(4^n/n).at n=17A129788Number of (n+3) X (1+3) 0..1 arrays with each row and column divisible by 9, read as a binary number with top and left being the most significant bits.at n=31A262333