Number of n-digit base 4 biquanimous numbers (with leading 0's allowed, but not all-0 string).

A064671

Number of n-digit base 4 biquanimous numbers (with leading 0's allowed, but not all-0 string).

Terms

    a(0) =0a(1) =3a(2) =18a(3) =91a(4) =420a(5) =1829a(6) =7686a(7) =31623a(8) =128520a(9) =518665a(10) =2084874a(11) =8361995a(12) =33497100a(13) =134094861a(14) =536608782a(15) =2146926607a(16) =8588754960a(17) =34357248017a(18) =137433710610a(19) =549744803859

External references