Numerator of Laguerre(n, -4).

Terms

a(0) =1a(1) =5a(2) =17a(3) =143a(4) =355a(5) =4043a(6) =5177a(7) =367271a(8) =713723a(9) =2410003a(10) =109669391a(11) =85569361a(12) =11122330591a(13) =245535162239a(14) =52108328723