30464

Appears in sequences

• Coefficients of cluster series for site percolation problem on square lattice with 1st, 2nd and 3rd neighbor bonds.at n=6A036398
• Number of permutations of [ n ] with exactly one 132-pattern and two 123-patterns.at n=9A046718
• Triangle read by rows: T(n, k) = number of matchings of 2n people with partners (of either sex) such that exactly k couples are left together.at n=39A055140
• T(n,k) is the number of order-decreasing and order-preserving partial transformations (of an n-chain) of waist k (waist(alpha) = max(Im(alpha))).at n=59A145035
• a(n) = 27225*n^2 - 51302*n + 24168.at n=1A157802
• Terms of A177763 which have more than one such representation.at n=24A177766
• Numbers of the form p^8*q*r where p, q, and r are distinct primes.at n=18A179747
• Values of b such that (c+9b)*prime(n)#-1 is the least prime such that (c+kb)*prime(n)#-1 are all primes for 0 <= k <= 9, or 0 if there is no solution with c+9b < prime(n)#.at n=21A188367
• 3-nonnesting permutations.at n=7A193938
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=17A208376
• Sum of the divisors of n^3+1.at n=30A234645
• Number of squares that divide 1!*2!*3!*...*n!.at n=12A248784
• Number of length-n 0..7 arrays with no repeated value differing from the previous repeated value by other than one.at n=4A269536
• Number of length-5 0..n arrays with no repeated value differing from the previous repeated value by other than one.at n=6A269539
• Number of permutations of [1..n] which achieve the worse case bound for a graph domination problem.at n=8A272640
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 485", based on the 5-celled von Neumann neighborhood.at n=14A282553
• Even integers k such that lambda(sum of even divisors of k) = sum of odd divisors of k.at n=37A293356
• Number of 1's in truth table for Boolean function x1 x2 x4 + x2 x3 x5 + ... + x{n-3} x{n-2} xn + x{n-2} x{n-1} x1 + x{n-1} xn x2 + xn x1 x3.at n=12A305381
• T(n, k) = 2^n * n! * [x^k] [z^n] (4*exp(x*z))/(exp(z) + 1)^2, triangle read by rows, for 0 <= k <= n. Coefficients of Euler polynomials of order 2.at n=38A326480
• Denominators of rational coefficients which are ratio of Brent's coefficients -A[n,2]/A343480.at n=42A380948