388934370
domain: N
Appears in sequences
- Self-convolution of A120588, such that a(n) = 3*A120588(n) for n >= 2.at n=18A120589
- 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=35A126324
- Trisection of A000984 (central binomial coefficients): binomial(2(3n+2),3n+2)/3!, n>=0.at n=5A187365