Number of coalescent histories for pseudocaterpillar gene trees G and caterpillar species trees S.

A306423

Number of coalescent histories for pseudocaterpillar gene trees G and caterpillar species trees S.

Terms

    a(0) =3a(1) =11a(2) =37a(3) =124a(4) =420a(5) =1441a(6) =5005a(7) =17576a(8) =62322a(9) =222870a(10) =802978a(11) =2912168a(12) =10623470a(13) =38956365a(14) =143521725a(15) =530985360a(16) =1971965490a(17) =7348812570a(18) =27472909590a(19) =103002205800a(20) =387205269360

External references