835584

Appears in sequences

• a(n) = 4^n*(3*n)!/((n+1)!*(2*n+1)!).at n=6A006335
• Scaled Chebyshev U-polynomials evaluated at sqrt(2).at n=7A057084
• Coefficient triangle of polynomials (falling powers) related to Pell number convolutions. Companion triangle is A058405.at n=28A058404
• 16-almost primes (generalization of semiprimes).at n=28A069277
• Numbers k such that phi(k) is a perfect 9th power.at n=27A078169
• Binomial transform of A001651.at n=16A084858
• Array by antidiagonals: Number of planar lattice walks of length 3n+2k starting at (0,0) and ending at (k,0), remaining in the first quadrant and using only NE,W,S steps.at n=27A098273
• Triangle, T(n, k) = (sqrt(k+1))^(n-1)*ChebyshevU(n-1, sqrt(k+1)/2), read by rows.at n=43A167925
• Number A(n,k) of solid standard Young tableaux of shape [[n*k,n],[n]]; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=34A176129
• E.g.f. 1/(1-arctan(x)).at n=12A191700
• Number A(n,k) of solid standard Young tableaux of shape [[(n)^(k+1)],[n]^k]; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=34A214631
• Number A(n,k) of solid standard Young tableaux of shape [[{n}^k],[n]]; square array A(n,k), n>=0, k>=1, read by antidiagonals.at n=34A214722
• Number of n X 2 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.at n=7A268965
• Numbers n such that sigma(n) - 1 and sigma(phi(n)) are both primes.at n=32A270416
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 22", based on the 5-celled von Neumann neighborhood.at n=19A274224
• Number A(n,k) of n*(k+1)-step k-dimensional nonnegative closed lattice walks starting at the origin and using steps that increment all components or decrement one component by 1; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=42A340591
• Numbers whose product of prime indices equals their product of prime exponents (prime signature).at n=31A353503