A122630 a(n) = F(n)_F(n) where F() = Fibonacci numbers A000045.

1, 1, 2, 3, 5, 8, 16, 43, 106, 280, 721, 21316, 109280, 429033, 2233210, 8775424, 4085769598, 34540431364, 292365761174, 1857930879920, 14355615174465090, 98433733136538817, 1349004838730110732, 18490450644358531784, 221781946674143587555, 26361819178249287412512739

Offset

1,3

Comments

See A122618 for notation.

Links

Alois P. Heinz, Table of n, a(n) for n = 1..150

Maple

F:= n-> (<<0|1>, <1|1>>^n)[1, 2]:
a:= n-> (b-> (l-> add(l[i]*b^(i-1), i=1..nops(l)))(convert(b, base, 10)))(F(n)):
seq(a(n), n=1..35);  # Alois P. Heinz, Apr 10 2021

Crossrefs

Cf. A000045, A122618.

Sequence in context: A370002 A308852 A093000 * A108054 A342690 A123612

Adjacent sequences: A122627 A122628 A122629 * A122631 A122632 A122633

Keyword

nonn,base

Author

N. J. A. Sloane, Sep 21 2006

Status

approved