Denominators of r(n) := Sum_{k=0..n-1} 1/Product_{j=0..4} (k + j + 1), for n >= 0, with r(0) = 0.

Terms

a(0) =1a(1) =120a(2) =720a(3) =1680a(4) =2240a(5) =12096a(6) =20160a(7) =31680a(8) =23760a(9) =11440a(10) =12012a(11) =32760a(12) =174720a(13) =76160a(14) =293760a(15) =372096a(16) =116280a(17) =17955a(18) =117040a(19) =425040a(20) =1020096a(21) =1214400a(22) =478400a(23) =1684800a(24) =982800a(25) =1140048a(26) =657720a(27) =125860a(28) =3452160a(29) =3928320