127465
domain: N
Appears in sequences
- Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={0}.at n=14A079997
- Numbers k that are the hypotenuse of exactly 40 distinct integer-sided right triangles, i.e., k^2 can be written as a sum of two squares in 40 ways.at n=24A097282
- Triangle read by rows: T(n,k) is the number of non-equivalent regular polygons with n+1 edges, one of which is rooted, which are dissected by non-intersecting diagonals into k regions, such that two such polygons are identified up to reflection along the rooted edge and twisting along the diagonals that does not affect the root edge (for 1 <= k <= n-1 and n >= 2).at n=72A232206
- Numbers n that are the product of four distinct odd primes and x^2 + y^2 = n has integer solutions.at n=18A264499
- Number of canonical forms for separation coordinates on hyperspheres S_n, ordered by increasing number of independent continuous parameters.at n=71A295380
- Number of minimal total dominating sets in the n-pan graph.at n=41A303148
- All integers k that can produce a closed walk in a square lattice via noncongruent primitive k-length hypotenuses, in ascending order.at n=3A386671