4601610

Appears in sequences

• Number of permutations of [n+1] with exactly 1 increasing subsequence of length 3.at n=11A003517
• Row maximum of Catalan triangle with zeros (A053121), i.e., maximum value of (m+1)*binomial(n+1,(n-m)/2)/(n+1) for given n with m same parity as n.at n=27A101461
• Arises from enumeration of a certain class of partial zig-zag knight's paths on the square grid.at n=26A368379