90763domain: NAppears in sequencesa(n) = (1/6)*(n+1)*(10*n^2 + 17*n + 12).at n=37A102296The non-common part of the smaller number of an amicable pair.at n=36A180326Numbers in A007504 such that omega(a(n)) = Omega(a(n)) = 3.at n=31A264885Sum of the first n*(n+1) primes.at n=13A322420