165662

Appears in sequences

• Triangle read by rows: T(n,k) is the number of permutations of [n] having k strong fixed blocks (see first comment for definition).at n=46A186373
• Number of permutations of [n] having exactly 3 strong fixed blocks.at n=6A225964
• Numbers k such that m=2*k is the middle side in a Heronian triangle with sides m-13, m , m+13.at n=23A293817