A320986 Fibonacci rabbit sequence number n coded in base four.

0, 1, 4, 17, 276, 17681, 18105620, 1186569930001, 79629360058944734484, 350213629188686097286494407640337, 103364819020299355365011185381334444307580296786887956

Offset

0,3

Links

Alois P. Heinz, Table of n, a(n) for n = 0..16

Maple

b:= proc(n) option remember; `if`(n<2, [n$2], [b(n-1)[1]*
      4^b(n-1)[2]+b(n-2)[1], b(n-1)[2]+b(n-2)[2]])
    end:
a:= n-> b(n)[1]:
seq(a(n), n=0..11);

Crossrefs

Column k=4 of A144287.

Sequence in context: A032083 A126776 A214143 * A302145 A015489 A153061

Adjacent sequences: A320983 A320984 A320985 * A320987 A320988 A320989

Keyword

nonn

Author

Alois P. Heinz, Oct 25 2018

Status

approved