22870640910
domain: N
Appears in sequences
- Super ballot numbers: 6(2n)!/(n!(n+2)!).at n=22A007054
- Largest squarefree number dividing central binomial coefficient A000984(n).at n=23A080397
- a(n) = 6*(2n-4)!/((n-2)!n!), if n>2. a(0) = 1, a(1) = a(2) = 2.at n=24A091712
- The radical of the Catalan number which is the largest squarefree number dividing binomial(2*n,n)/(n+1).at n=22A281594
- The radical of the Catalan number which is the largest squarefree number dividing binomial(2*n,n)/(n+1).at n=23A281594
- a(n) = 3/(n + 1) * Catalan(2*n).at n=11A387248