(2n)! divided by denominator of Taylor expansion of exp(cos(x)-1).

Terms

a(0) =1a(1) =4a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =4a(8) =1a(9) =11a(10) =4a(11) =1a(12) =1a(13) =4a(14) =11a(15) =1a(16) =4a(17) =31a(18) =1a(19) =44a(20) =29a(21) =1a(22) =4a(23) =1a(24) =11a(25) =4a(26) =29a(27) =1a(28) =4a(29) =11