86973087744
domain: N
Appears in sequences
- Coefficient of q^n in (1-q)^4/(1-4q); dimensions of the enveloping algebra of the derived free Lie algebra on 4 letters.at n=19A118265
- a(n) = (n^3 - n^2)*8^n.at n=8A128991
- Hankel transform of double factorial numbers n!*2^n=A000165(n).at n=4A136807
- a(n) = 16^n * n * (n!)^4.at n=4A280845
- a(n) = Product_{k=1..n} d(2*k - 1), where d() is the number of divisors function A000005.at n=26A334764
- a(n) = Product_{k=1..n-1} phi(gcd(n,k)).at n=44A349741