42902475domain: NAppears in sequencesa(n) = 35*(n+1)*binomial(n+4, 7)/4.at n=16A027803Denominator of 1^n/n + 2^n/(n-1) + 3^n/(n-2) + ... + (n-1)^n/2 + n^n/1.at n=24A120487a(n) is the denominator of Catalan-Daehee number d(n).at n=24A344850