51200000

Appears in sequences

• Let d(1)=1 and d(n) = d(n-1)*n^(2n-2)*(2n-1)^(3-2n). Then a(n)=numerator(d(n)).at n=4A114876
• Numbers k such that k^4 is the sum of two positive 5th powers.at n=21A291852