26542080

Appears in sequences

• Number of 3-fold-free subsets of {1, 2, ..., n}.at n=28A050293
• Least number whose number of divisors is A007304(n) (the n-th number that is the product of 3 distinct primes).at n=13A061299
• Number of proper divisors of n is a square and sets a new record for such squares.at n=6A063721
• The n-th Minkowski number divided by the n-th factorial: a(n) = A053657(n)/n!.at n=16A163176
• Numbers that set records for number of ordered factorizations as A025487(j)*A025487(k).at n=33A182763
• Sorted number of edges of distinct solutions in the mix of 2 or 3 regular convex 4-polytopes.at n=27A199808
• Irregular triangle T(n,m), denominators of coefficients in a power/Fourier series expansion of the plane pendulum's exact time dependence.at n=28A274131
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 150", based on the 5-celled von Neumann neighborhood.at n=31A286089
• a(n) is the least k > 0 such that A303809(k) = 2^n.at n=21A303819
• a(n) = lcm(tau(n), pod(n)) / n, where tau(k) = the number of divisors of k (A000005) and pod(n) = the product of divisors of k (A007955).at n=47A307892
• a(n) = A163176(n+1)*A003557(n+1).at n=16A341108
• a(n) = denominator( (e/Pi)*Integral_{x=-oo..+oo} cos(x)/(1 + x^2)^n dx ).at n=9A381845