Ceiling(n*exp(sec n)).

Terms

a(0) =7a(1) =1a(2) =2a(3) =1a(4) =170a(5) =18a(6) =27a(7) =1a(8) =4a(9) =4a(11) =40a(12) =40a(13) =21002a(14) =5a(15) =6a(16) =1a(17) =82a(18) =53a(19) =232a(20) =4a(21) =9a(22) =4a(23) =254a(24) =69a(25) =122a(26) =1a(27) =10a(28) =8a(29) =19617a(30) =93