Coefficients in asymptotic expansion of sequence A293236.

Terms

a(0) =1a(1) =0a(2) =-1a(3) =0a(4) =3a(5) =12a(6) =35a(7) =61a(8) =-153a(9) =-2197a(10) =-11330a(11) =-6513a(12) =576693a(13) =8039161a(14) =74592474a(15) =536729860a(16) =2823657417a(17) =5689440944a(18) =-93424479237