457508

Appears in sequences

• Table T(n,k) of number of elements of Weyl group of type D of order 2^{n-1} n! such that a reduced word uses exactly n-k distinct simple reflections 0 <= k <= n, n>=1.at n=47A112226
• Number of tilings of an n X 1 rectangle by tiles of dimension 1 X 1 and 2 X 1 such that every tile shares an equal-length edge with a tile of the same size.at n=42A248880
• Number of length n+5 0..7 arrays with every six consecutive terms having five times some element equal to the sum of the remaining five.at n=12A249496