208011

Appears in sequences

• Catalan numbers - 1.at n=10A001453
• Dirichlet convolution of Moebius function mu(n) (A008683) with Catalan numbers (A000108).at n=12A034742
• a(n) = C(n)-1+0^n where C(n) = A000108(n).at n=12A141364
• a(n) = (p*(p+4)+1)/2 where (p,p+4) are the n-th cousin prime pair.at n=28A163634
• Triangle read by rows: T(n,k) = number of heapable permutations of length n whose longest decreasing subsequence has length k.at n=43A390146