50028

Appears in sequences

• Triangle T(n,k) read by rows: the real part of the coefficient [x^k] of (1-x)^(n+1) * Sum_{s>=0} ((2*s + 1 + 2*i)^n)*x^s, where i is the imaginary unit.at n=24A179087
• Number of length n+6 0..3 arrays with no seven consecutive terms having the maximum of any two terms equal to the minimum of the remaining five terms.at n=2A250054
• T(n,k)=Number of length n+6 0..k arrays with no seven consecutive terms having the maximum of any two terms equal to the minimum of the remaining five terms.at n=12A250059
• Number of length 3+6 0..n arrays with no seven consecutive terms having the maximum of any two terms equal to the minimum of the remaining five terms.at n=2A250062
• a(n) is the end square spiral number for a knight starting on square n moving on a board with squares numbered with the square of their distance from the 0-square origin and where the knight moves to the smallest numbered unvisited square; the smallest spiral number ordering is used if the distances are equal.at n=23A326931
• Number of 2's in the first 10^n entries of the Kolakoski sequence (A000002).at n=5A342407
• a(n) = n! * Sum_{k=1..n} floor(n/k)/k.at n=6A356010