a(n) = Product_{k=1..n} d(2*k), where d() is the number of divisors function A000005.
A334767
a(n) = Product_{k=1..n} d(2*k), where d() is the number of divisors function A000005.
Terms
- a(0) =2a(1) =6a(2) =24a(3) =96a(4) =384a(5) =2304a(6) =9216a(7) =46080a(8) =276480a(9) =1658880a(10) =6635520a(11) =53084160a(12) =212336640a(13) =1274019840a(14) =10192158720a(15) =61152952320a(16) =244611809280
External references
- oeis: A334767