Denominators of expansion for original Debye function (n=3).

Terms

a(0) =1a(1) =8a(2) =20a(3) =1a(4) =1680a(5) =1a(6) =90720a(7) =1a(8) =4435200a(9) =1a(10) =207567360a(11) =1a(13) =1a(14) =423437414400a(15) =1a(17) =1a(19) =1a(21) =1a(23) =1a(25) =1