4353564672

Appears in sequences

• Ratios of successive terms are 2, 3, 2, 3, 2, 3, 2, 3, ...at n=25A026549
• a(n) = n*6^(n-1).at n=11A053469
• Maximum of |det(A)| where A is an n X n circulant (0,1) matrix over the integers.at n=22A086432
• a(n) = phi(6^n).at n=13A167747
• Numbers of circuits of length 2n in K_{n,n} (the complete bipartite graph on 2n vertices).at n=5A172286
• a(n) = Sum_{p|n, p prime} n^tau(n/p).at n=35A369893
• Numbers of the form P(k)^m * Q(k), k > 1, m >= 0, with P(k) = Product_{i=1..k} prime(i) = A002110(k) and Q(k) = Product_{j=1..k} P(j) = A006939(k).at n=20A387492
• Numbers of the form P(k)^m * Q(k), k > 1, m >= 1, with P(k) = Product_{i=1..k} prime(i) = A002110(k) and Q(k) = Product_{j=1..k} P(j) = A006939(k).at n=16A387493