Expansion of 1/sqrt( (1-x) * (1-x-4*x^2)^3 ).

Terms

a(0) =1a(1) =2a(2) =9a(3) =22a(4) =71a(5) =186a(6) =537a(7) =1434a(8) =3957a(9) =10586a(10) =28603a(11) =76266a(12) =203767a(13) =540986a(14) =1435533a(15) =3796050a(16) =10026015a(17) =26422350a(18) =69544765a(19) =182759750a(20) =479731113a(21) =1257750486a(22) =3294264627a(23) =8619879726a(24) =22535782953a(25) =58869786162a(26) =153671378139a(27) =400861115498