a(n) = T(2n-1,n), where T is the array defined in A026105.
A026111
a(n) = T(2n-1,n), where T is the array defined in A026105.
Terms
- a(0) =3a(1) =16a(2) =89a(3) =496a(4) =2795a(5) =15884a(6) =90909a(7) =523312a(8) =3026850a(9) =17577660a(10) =102425257a(11) =598575368a(12) =3506930635a(13) =20591787300a(14) =121145018325a(15) =713948286528
External references
- oeis: A026111