a(n) = Sum_{k=0..n} A011971(n, k) * 2^(n - k).
A367808
a(n) = Sum_{k=0..n} A011971(n, k) * 2^(n - k).
Terms
- a(0) =1a(1) =4a(2) =19a(3) =103a(4) =634a(5) =4393a(6) =33893a(7) =288158a(8) =2674849a(9) =26888251a(10) =290614732a(11) =3356438587a(12) =41203019361a(13) =535141595208
External references
- oeis: A367808