1485465

Appears in sequences

• Number of permutations of length n by rises.at n=8A001277
• Irregular triangle read by rows: T(n,k) (n>=1, 0 <= k <= floor(n/2)) = number of permutations of 1..n with exactly floor(n/2) - k runs of consecutive pairs up.at n=33A010029
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k maximal strings of increasing consecutive integers (0<=k<=floor(n/2)).at n=31A136123
• Number of permutations of {1,2,...,n} having exactly one string of consecutive fixed points (including singletons).at n=9A177265
• Triangle read by rows: T(n,k) is the number of permutations of [n] having k fixed blocks.at n=36A180192