Terms at positions 2^n of A107946 for n>=0.

A107948

Terms at positions 2^n of A107946 for n>=0.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =16a(5) =68a(6) =399a(7) =3348a(8) =41417a(9) =775234a(10) =22445788a(11) =1024347395a(12) =74876701760

External references