24057

Appears in sequences

• a(n) = 2*3^n*(2*n)!/(n!*(n+2)!).at n=6A000168
• Numbers of the form 3^i*11^j.at n=26A003597
• a(n) = n*3^(n-4).at n=8A006234
• Triangular matrix arising in enumeration of catafusenes, read by rows.at n=53A038763
• Odd numbers divisible by exactly 8 primes (counted with multiplicity).at n=4A046321
• Numbers k such that k | 11^k + 10^k + 9^k + 8^k + 7^k + 6^k + 5^k + 4^k + 3^k + 2^k + 1^k.at n=37A057292
• Numbers n such that n | 9^n + 7^n + 5^n + 3^n.at n=21A063455
• Triangle of generalized Chebyshev coefficients.at n=36A080419
• Square array of binomial transforms of Chebyshev polynomial coefficients.at n=53A081281
• Square array, read by antidiagonals, where the n-th row is the n-th binomial transform of the natural numbers, with T(0,k) = (k+1) for k>=0.at n=57A089944
• Square array T(n,k), read by antidiagonals: number of labeled trees, with increments of labels along edges constrained to -1,0,1, with n nodes that have no label greater than k.at n=27A101486
• a(n) = 11*3^n.at n=7A120354
• Number of intersections of at least four edges in a cube of n X n X n smaller cubes.at n=27A126562
• Triangle whose rows are generated by A136157^n * [1, 1, 0, 0, 0, ...].at n=46A136158
• a(n) = 9^n mod 6^n.at n=7A139731
• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 110-111-101 pattern in any orientation.at n=15A146260
• Numbers which can be expressed as the product of numbers made of only threes.at n=26A161141
• Denominator/27 of hypergeom([n+1/2,1],[n+3],-3).at n=6A227474
• Triangle T(n,k) read by rows: T(n,k) is the number of rooted genus-k maps with n edges, n>=0, 0<=k<=n.at n=21A238396
• Number of divisors of the n-th positive number that is both triangular and square.at n=31A242585