250749

Appears in sequences

• Kendall-Mann numbers: the most common number of inversions in a permutation on n letters is floor(n*(n-1)/4); a(n) is the number of permutations with this many inversions.at n=9A000140
• Largest coefficient in expansion of Product_{i=1..n} (1-q^1+q^2-...+(-q)^i).at n=9A039909
• Number of reduced words of length n in the Weyl group A_9.at n=22A161457
• Number of reduced words of length n in the Weyl group A_9.at n=23A161457
• Numbers which are members of both A000140 and A039909.at n=6A179998