a(n) = Sum_{j=0..n} C(n)*C(n-j), where C(n) is the n-th Catalan number.
A358436
a(n) = Sum_{j=0..n} C(n)*C(n-j), where C(n) is the n-th Catalan number.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =45a(4) =322a(5) =2730a(6) =26004a(7) =268554a(8) =2940080a(9) =33635316a(10) =398300344a(11) =4849845000a(12) =60429982144a(13) =767721774800
External references
- oeis: A358436