218349120
domain: N
Appears in sequences
- Fourth convolution of Catalan numbers: a(n) = 4*binomial(2*n+3,n)/(n+4).at n=15A002057
- a(n) = 8*binomial(2*n+1,n-3)/(n+5).at n=13A003518
- An inverse Chebyshev transform of x^3.at n=16A099376
- Arises from enumeration of a certain class of partial zig-zag knight's paths on the square grid.at n=32A368378
- Arises from enumeration of a certain class of partial zig-zag knight's paths on the square grid.at n=32A368380