25704

Appears in sequences

• a(n) = 4*a(n-1) - a(n-2) + 1, with a(0) = 0, a(1) = 2.at n=8A001571
• Weight distribution of [ 17,9,7 ] code over GF(4).at n=12A014488
• a(n) = Sum_{i=1..floor((n+1)/4)} a(2*i-1) * a(n-2*i+1), with a(1)=3 and a(2)=a(3)=1.at n=11A024737
• Weight distribution of [ 17,8,8 ] code over GF(4).at n=6A030061
• Longest edge a of smallest (measured by the longest edge) primitive Euler bricks (a, b, c, sqrt(a^2 + b^2), sqrt(b^2 + c^2), sqrt(a^2 + c^2) are integers).at n=33A031173
• a(n) = floor( n(n+1)(n+2)(n+3)(n+4) / (n+(n+1)+(n+2)+(n+3)+(n+4)) ).at n=17A032768
• Integer quotients of n(n + 1)(n + 2)(n + 3)(n + 4) / (n+(n+1)+(n+2)+(n+3)+(n+4)).at n=14A032770
• Positive integers of the form n(n+1)(n+2)(n+3)(n+4)/(n+(n+1)+(n+2)+(n+3)+(n+4)) that are a multiple of n.at n=10A032794
• Number of 2n-bead balanced binary necklaces of fundamental period 2n which are equivalent to their complement, but not equivalent to their reverse and their reversed complement.at n=20A045686
• Square root of b_1*b_2*...*b_t corresponding to smallest values of t in R. L. Graham's sequence (A006255).at n=50A066401
• a(1) = a(2) = 1; a(n) = sigma(a(n-1)+a(n-2)).at n=12A069143
• Numbers k such that phi(k) = Sum_{d|k} core(d) where core(x) is the squarefree part of x (A007913).at n=15A074786
• Numbers k not in A065036 but such that tau(k) = omega(k)^3.at n=24A074853
• Maximal number of 165432 patterns in a permutation of 1,2,...,n.at n=20A100356
• Numbers with at least two 3s in their prime signature.at n=61A109399
• Numbers k such that the k-th triangular number contains only digits {0,3,6}.at n=14A119064
• Number of 4-way intersections in the interior of a regular 6n-gon.at n=35A137938
• Triangle T(n, k, m) = f(n, m)/(f(k, m)*f(n-k, m)), where T(0, k, m) = 1, f(n, k) = Product_{j=1..n} ( j!*((k+1)^j -1)/k ), f(n, 0) = n!, and m = 3, read by rows.at n=12A156767
• Numbers with exactly 64 divisors.at n=26A172443
• Numbers with prime factorization p*q*r^3*s^3 (where p, q, r, s are distinct primes).at n=9A190108