Denominators of expansion of sinh x / sin x.

Terms

a(0) =1a(1) =3a(2) =3a(3) =21a(4) =9a(5) =11a(6) =21a(7) =9a(8) =1a(9) =133a(10) =693a(11) =69a(12) =7a(13) =189a(14) =3a(15) =7161a(16) =231a(17) =7a(18) =399a(19) =63a(20) =77a(21) =3311a(22) =4347a(23) =987a(24) =49a(25) =33a(26) =33a(27) =627a(28) =57a(29) =59