27616

Appears in sequences

• Molien series for a certain 16-dimensional group of order 20160.at n=16A104993
• a(n) = Sum_{k=0..n-1} binomial(n-1,k)^2 * binomial(n,k).at n=6A181067
• Palindromic in bases 5 and 7.at n=16A249156
• Number of nX3 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 4 1s.at n=14A295200
• The number of regions formed when every pair of n points, placed at the vertices of a regular n-gon, are connected by a circle and where the points lie at the ends of the circle's diameter.at n=19A358782