-5874domain: ZAppears in sequencesExpansion of 1/( (1-x)*(1 + x^2 + x^3) ).at n=47A077889Expansion of (1-x)^(-1)/(1+2*x+x^2-x^3).at n=23A077929Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the symmetric matrix A185957; by antidiagonals.at n=42A202678