567567000domain: NAppears in sequencesPartial products of largest prime factors of numbers <= n.at n=14A104350Triangle, read by rows, where T(n,k) = n!/(k!*(n-4*k)!*4^k) for n>=4*k>=0.at n=39A118933a(n) = Product_{i=1..n, j=1..n} (i + 4*j).at n=3A367957