963327domain: NAppears in sequencesIrregular triangle of coefficients of p(n, x) = (1 - x^2)^(n+1)*Sum_{j >= 0} (4*j+ 1)^n*x^(2*j), read by rows.at n=44A158782Triangle read by rows, coefficients of the generalized Eulerian polynomials A_{n, 4}(x) in descending order.at n=23A225118