46142domain: NAppears in sequencesNumber of matrix bundles of codimension n (Euler transform of A001156).at n=25A007864Becomes prime after exactly 8 iterations of f(x) = sum of prime factors of x.at n=24A047827Becomes prime or 4 after exactly 10 iterations of f(x) = sum of prime factors of x.at n=4A048132