58206domain: NAppears in sequencesa(n) = 10*a(n-1) - a(n-2) with a(0)=0, a(1)=6.at n=5A122653Numbers n such that sigma(n)/phi(n) = 25/4, where sigma = A000203, phi = A000010.at n=4A165629Number of parts in all partitions of 2n with largest multiplicity n.at n=32A320381