188743680

Appears in sequences

• Expansion of g.f. (1+2*x)/(1-2*x)^2.at n=22A014480
• Generalized Stirling number triangle of the first kind.at n=21A051187
• Octo-factorial numbers.at n=6A051189
• Least number whose number of divisors is A007304(n) (the n-th number that is the product of 3 distinct primes).at n=10A061299
• Let P(k,X) = 4^k*Product_{i=1..k} (X - cos(Pi*i/k)) (which is a polynomial with integer coefficients). Sequence gives maximum absolute values of coefficients of P(n,X).at n=12A075614
• Number of subsets of {1,.., n} containing no twin prime pairs.at n=28A089827
• (Product of first n even numbers)/(product of first k odd numbers) where k is chosen to give the least integer.at n=11A092978
• Row sums of triangle A094280.at n=25A094283
• Coefficients of polynomials S(n,x) related to Springer numbers.at n=21A098432
• a(n) = (n^3 - n)*4^n.at n=8A128962
• Triangle read by rows: T(n,k) = n^k * k!.at n=42A153188
• Smallest number having exactly t divisors, where t is the n-th triprime (A014612).at n=31A185445
• (n-1)-st elementary symmetric function of the first n terms of (2,2,1,2,2,1,2,2,1,...)=(A130196 for n>0).at n=33A203167
• The hyper-Wiener index of the hypercube graph Q(n) (n>=2).at n=10A228310
• Partial products of A029940 (Product_{d|n} phi(d)).at n=11A280132