111753

Appears in sequences

• Number of Abelian cubes of length 3n over an alphabet of size 3. An Abelian cube is a string of the form x x' x'' with |x| = |x'| = |x''| and x is a permutation of x' and x''.at n=5A141057
• Square array A(n,k) = (n!)^3 [x^n] hypergeom([], [1, 1], z)^k read by antidiagonals.at n=41A287698
• a(n) = (5!)^3 * [z^5] hypergeom([], [1,1], z)^n.at n=3A287701