1431728

Appears in sequences

• Triangle formed by coefficients of the expansion of p(x,n) = (1-x)^(2*n + 1)*Sum_{j >= 0} (1 +j +j^2)^n * x^j.at n=30A156985
• Coefficients of infinite sum polynomials; p(x,n)=If[Mod[n, 2] == 1, (1 - x)^(n + 1)*Sum[(k + 1)*(1 + k + k^2)^Floor[(n - 1)/2]* x^k, {k, 0, Infinity}], (1 - x)^(n + 1)*Sum[(1 + k + k^2)^Floor[n/2]*x^ k, {k, 0, Infinity}]].at n=55A169625
• Number of length 6+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.at n=10A249712