2214051840domain: NAppears in sequencesa(n) = 2^(n-1) * n! * Catalan(n-1) for n > 0 with a(0) = 0.at n=8A052714a(n) = smallest term in A141586 that is divisible by 2^n but not by 2^(n+1).at n=14A141900Partial products of successive terms of A017113; a(0)=1.at n=7A144828