1520640domain: NAppears in sequencesCoefficients of x^n in Hermite polynomial H_{n+4}.at n=8A001816Molecular topological indices of the tetrahedral graphs.at n=10A192847Number of elements of order n in the simple unitary group U2(5).at n=8A284984Number of elements of order n in the simple unitary group U2(5).at n=17A284984