Integer ceiling of coefficients of exp(x*A(x)).

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =8a(5) =16a(6) =35a(7) =81a(8) =190a(9) =458a(10) =1122a(11) =2784a(12) =6983a(13) =17678a(14) =45108a(15) =115892a(16) =299542a(17) =778330a(18) =2031974a(19) =5327304a(20) =14020083a(21) =37024711a(22) =98083557a(23) =260583547a(24) =694130905a(25) =1853484434a(26) =4960318790a(27) =13302462676a(28) =35743133528a(29) =96213085461