24720

Appears in sequences

• Sum of n plus its prime factors associated with A020700.at n=30A020905
• Numbers n such that n | sigma_3(n) + sigma_2(n) + sigma_1(n) + sigma_0(n).at n=15A058076
• a(n) = (n!)^2*Sum_{k=1..n} 1/k!.at n=4A061573
• Solution to the Dancing School Problem with 7 girls and n+7 boys: f(7,n).at n=5A079912
• Solution to the Dancing School Problem with n girls and n+5 boys: f(n,5).at n=6A079924
• Triangle read by rows: matrix product A000012 * A136717.at n=34A137593
• Partial sums of A174928.at n=38A174929
• Total sum of repeated parts in all partitions of n.at n=25A194544
• Numbers k with the property that p = k^2 - 11 and q = k^2 + 11 are consecutive primes.at n=36A248790
• T(n,k)=Number of length n arrays x(i), i=1..n with x(i) in i..i+k and no value appearing more than 1 time.at n=61A248944
• Number of bounded regions in the Linial arrangement L_{n-1}.at n=7A283828
• Number of non-equivalent ways (mod D_2) to select 4 points from n equidistant points on a straight line so that no selected point is equally distant from two other selected points.at n=32A300761
• Number of 3 X n 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=11A303243
• Sequence shifts left six places under Weigh transform with a(n) = signum(n) for n<6.at n=38A316078
• 4*a(n) is the maximum possible determinant of a 3 X 3 matrix whose entries are 9 consecutive primes starting with prime(n).at n=13A340923
• Array read by antidiagonals: T(n,k) is the number of k-tuples of permutations of [n] that pairwise commute.at n=50A362827
• Number of edges in the hyperoctahedral (or cocktail party) graph of order n.at n=12A368757
• a(n) = [x^(n*(n+1)/2)] Product_{k=1..n} (x^(k*(k+1)/2) + 1 + 1/x^(k*(k+1)/2)).at n=15A369496