361302

Appears in sequences

• Triangle of numbers T(n,k) = number of permutations of n things with longest increasing subsequence of length <=k (1<=k<=n).at n=41A047887
• Number of permutations in S_n with longest increasing subsequence of length <= 6.at n=9A052399
• Meandric numbers for a river (or directed line) crossing two perpendicular roads at n points, beginning in the (-,-) quadrant and ending in the (+,+) quadrant if n even, in the (+,-) quadrant if n odd.at n=14A076906