1289945088

Appears in sequences

• Denominator of sum of -9th powers of divisors of n.at n=11A017682
• 12th binomial transform of (0,0,1,0,0,0,...).at n=9A081142
• Triangle, read by rows, of coefficients for the third iteration of the hyperbinomial transform.at n=45A089463
• Cumulative product of A000120.at n=27A121853
• a(n) = Product_{i=1..n} psi(i) where psi is the Dedekind psi function (A001615).at n=10A175836
• Partial products of A052901.at n=25A208131
• a(n) = 432*n^6.at n=12A228105
• Determinant of the n X n matrix with (i,j)-entry equal to the greatest common divisor of i-j and n.at n=10A228884
• Start with 1; multiply alternately by 3 and 4.at n=17A282022
• Denominator of (-1/3)^n*sqrt(Pi)/(Gamma(1/2 - n)*Gamma(1 + n)).at n=9A285018
• a(n) is the Narumi-Katayama index of the Lucas cube Lambda(n).at n=5A307212
• Superior 2-highly composite numbers: 3-smooth numbers (A003586) k for which there is a real number e > 0 such that d(k)/k^e >= d(j)/j^e for all 3-smooth numbers j, where d(k) is the number of divisors of k (A000005).at n=25A309016
• a(n) = 3*(n+3)^(n-1).at n=9A362354