594594

Appears in sequences

• Number of nonempty subsets of {1,2,...,n} in which exactly 5/6 of the elements are <= (n-3)/3.at n=46A048037
• Numbers k such that (k + R(k)) / (k - R(k)) = +-11 where R(k) is the digit reversal of k (A004086).at n=18A062390
• a(n) = C(n+8,8) * C(n+6,6).at n=5A107319
• a(n) = binomial(n+5, 5) * binomial(n+7, 5).at n=6A107396
• Square array read by ascending antidiagonals: T(n,k) = (2*k)!/k! * ( (2*n*k)! * ((2*n+1)*k)! )/( (n*k)!^2 * ((n+1)*k)!^2 ).at n=17A364506
• a(n) = (7*n)!*(6*n)!*(2*n)! / ((4*n)!^2 * (3*n)!^2 * n!).at n=2A364508
• Numbers k such that R(k)/k is of the form m/(m + 1), where R(k) is the digital reversal of k.at n=21A376260