Logarithmic numbers.

Terms

a(0) =1a(1) =-2a(2) =9a(3) =-28a(4) =185a(5) =-846a(6) =7777a(7) =-47384a(8) =559953a(9) =-4264570a(10) =61594841a(11) =-562923252a(12) =9608795209a(13) =-102452031878