a(n) = least integer of the form (n+2)(n+4)...(n+2k)/n, or 0 if no such number exists.

A109899

a(n) = least integer of the form (n+2)(n+4)...(n+2k)/n, or 0 if no such number exists.

Terms

    a(0) =3a(1) =2a(2) =105a(3) =12a(4) =27027a(5) =160a(6) =18706545a(7) =15a(8) =1616615a(9) =96768a(11) =336a(13) =158146560a(14) =260015a(15) =495a(17) =12812800a(19) =576576a(20) =767633625

External references