1741824

Appears in sequences

• Product of digits of A034686(n).at n=8A034725
• Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*9^j.at n=30A038239
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*4^j.at n=33A038294
• a(n) is the sum of the divisors of the n-th primorial: a(n) = A000203(A002110(n)).at n=7A054640
• For the numbers k that can be expressed as k = w + x = y*z with w*x = y^3 + z^3 where w, x, y, and z are all positive integers, this sequence gives the corresponding values of w*x.at n=17A057443
• Expansion of a Schwarzian ({f_{27|3}, tau} / (4*Pi)^2) in powers of q^3.at n=30A062248
• Sixth column of triangle A067410.at n=6A067413
• Commuting elements: number of ordered pairs g, h in the group GL(2,Z_n) such that gh = hg.at n=13A070943
• Product of the first n digits of the Golden Ratio phi = 1.6180339... (treating 0's as if they were 1's).at n=10A084675
• Denominators in Stirling's asymptotic series.at n=5A097303
• Greatest common divisor of multiperfect numbers and their totient.at n=30A098204
• Numbers of the form (7^i)*(12^j), with i, j >= 0.at n=28A108238
• An analog of Pascal's triangle based on A092287. T(n,k) = A092287(n)/(A092287(n-k)*A092287(k)), 0 <= k <= n.at n=48A129453
• An analog of Pascal's triangle based on A092287. T(n,k) = A092287(n)/(A092287(n-k)*A092287(k)), 0 <= k <= n.at n=51A129453
• Partial products of A206032 (Product_{d|n} sigma(d)).at n=6A280086
• Number of elements of order n in the unitary group U3(8).at n=18A284970
• Sum of the divisors of the primorial inflation of n.at n=16A337203
• a(n) is the number of permutations on [n] with no strong fixed points but contains at least one small descent.at n=9A346198
• Nonprimes k such that sopfr(k) = rad(k), where sopfr(k) is sum of the prime factors of k (counting multiplicity), and rad(k) is the product of its distinct prime factors.at n=23A386916