a(n) = (n-1)*(n-2)*...*(n-r) with the least value of r so that n divides a(n).

A092914

a(n) = (n-1)*(n-2)*...*(n-r) with the least value of r so that n divides a(n).

Terms

    a(0) =60a(1) =0a(2) =840a(3) =20160a(4) =15120a(5) =0a(6) =7920a(7) =0a(8) =8648640a(9) =240240a(10) =3603600a(11) =0a(12) =8910720a(13) =0a(14) =1395360a(15) =390700800a(17) =0a(18) =212520a(22) =4475671200a(23) =0a(24) =14250600a(25) =0a(26) =318073392000

External references