11197440

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*12^j.at n=25A038266
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*6^j.at n=23A038332
• Denominators of x^(2n-1) in the series expansion of Steinhaus's approximate angle trisection.at n=3A158600
• (n-1)-st elementary symmetric function of the first n terms of the periodic sequence (2,3,2,3,2,3,...).at n=15A203232
• (n-1)-st elementary symmetric function of the first n terms of the periodic sequence (3,2,3,2,3,2,...).at n=15A203233
• a(n) = 5*n*6^(n-1).at n=7A212700
• Number of defective 3-colorings of an n X 3 0..2 array connected diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order.at n=7A229505
• Number of (undirected) Hamiltonian paths in the n X n rook graph.at n=3A308141
• Numbers that are expressible as the product of the number of distinct prime factors of preceding integers.at n=14A348882
• a(n) = n*n! / Product_{k=1..n} radical(k), where radical(n) is the product of distinct prime factors of n, cf. A007947.at n=27A387151