362597760domain: NAppears in sequencesPhi(m)*sigma(m), where m is the product of exactly two primes that differ by 2, where phi=A000010, sigma=A000203.at n=10A094949Triangle T(n,k) represents the coefficients of (x^12*d/dx)^n, where n>=1; generalization of Stirling numbers of second kind A008277, Lah-numbers A008297.at n=22A223514