60712

Appears in sequences

• Number of subsets A of {0,...,n-1} such that A contains 0 and n-1, and |A+A| > |A-A|.at n=28A224893
• Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k occurrences of the string ududu, where u=(1,1), d=(1,-1).at n=58A246188