32064
domain: N
Appears in sequences
- Number of permutations of floor(i*7/6), i=0..n-1, with all sums of 5 adjacent terms unique.at n=7A152361
- Rounded down ratio of area of a unit circle and one of the circles inscribed between a regular n-gon and a circumscribed unit circle.at n=18A244094
- Triangular array: row n gives the coefficients of the polynomial p(n,x) defined in Comments.at n=50A249252
- 8-step Fibonacci sequence starting with 0,0,0,0,0,0,1,0.at n=23A251672
- 9-step Fibonacci sequence starting with 0,0,0,0,0,1,0,0,0.at n=24A251748
- White to move: King and Queen vs. King: Number of positions with mate in n.at n=5A274684
- Number of labeled n-vertex simple graphs containing either a crossing or a nesting pair of edges.at n=6A326279
- a(n) = A100631(n, floor(n/2)).at n=11A341344
- a(n) = Sum_{k=0..floor(n/3)} 2^(n-2*k) * binomial(n-2*k,k)^2.at n=10A387510