7680414domain: NAppears in sequences4th elementary symmetric function of the first n+3 positive integers congruent to 1 mod 4.at n=5A024380Triangle read by rows: T(n, k) is the Sheffer triangle ((1 - 4*x)^(-1/4), (-1/4)*log(1 - 4*x)). A generalized Stirling1 triangle.at n=50A290319