1432916100

Appears in sequences

• Self-convolution of A120588, such that a(n) = 3*A120588(n) for n >= 2.at n=19A120589
• a(2n) = Cat(n), a(2n+1) = 3*Cat(n), where Cat(n) = binomial(2n,n)/(n+1) are the Catalan numbers (A000108).at n=37A126324