a(1) = 4, a(n+1) = the smallest multiple of composite(n+1) beginning with a(n).

A085954

a(1) = 4, a(n+1) = the smallest multiple of composite(n+1) beginning with a(n).

Terms

    a(0) =4a(1) =42a(2) =424a(3) =4248a(4) =42480a(5) =42480a(6) =424802a(7) =42480210a(8) =4248021008a(9) =424802100816

External references