Bottom line of 4-wave sequence A038197, also bisection of A006357.

A038235

Bottom line of 4-wave sequence A038197, also bisection of A006357.

Terms

    a(0) =1a(1) =10a(2) =85a(3) =707a(4) =5864a(5) =48620a(6) =403104a(7) =3342081a(8) =27708726a(9) =229729153a(10) =1904652103a(11) =15791202736a(12) =130922641160

External references