[ exp(19/22)*n! ].

Terms

a(0) =2a(1) =4a(2) =14a(3) =56a(4) =284a(5) =1707a(6) =11953a(7) =95629a(8) =860667a(9) =8606677a(10) =94673454a(11) =1136081456a(12) =14769058933a(13) =206766825074