a(1) = 1; a(n) = a(n-1)*prime(a(n-1)).A076146a(1) = 1; a(n) = a(n-1)*prime(a(n-1)).Terms a(0) =1a(1) =2a(2) =6a(3) =78a(4) =30966a(5) =11234495766External referencesoeis: A076146