A250112 Number of symmetric primitive Lucas strings of length n.

1, 2, 3, 4, 10, 12, 28, 40, 54, 90, 132, 180, 260, 392, 450, 752, 918, 1404, 1672, 2600, 2898, 4818, 5336, 8424, 9350, 15288, 16254, 26656, 28594, 46530, 49476, 80928, 84810, 140250, 146090, 239760, 250268, 412528, 426036, 702480, 726110, 1196244, 1232208

Offset

1,2

Links

Lars Blomberg, Table of n, a(n) for n = 1..1000

A. R. Ashrafi, J. Azarija, K. Fathalikhani, S. Klavzar and M. Petkovsek, Vertex and edge orbits of Fibonacci and Lucas cubes, 2014; See Table 3.

A. R. Ashrafi, J. Azarija, K. Fathalikhani, S. Klavzar, et al., Orbits of Fibonacci and Lucas cubes, dihedral transformations, and asymmetric strings, 2014.

Crossrefs

Cf. A031367, A250113.

Sequence in context: A374736 A005456 A100773 * A193775 A131120 A115195

Adjacent sequences: A250109 A250110 A250111 * A250113 A250114 A250115

Keyword

nonn

Author

N. J. A. Sloane, Nov 19 2014

Extensions

More terms from Lars Blomberg, Dec 05 2016

Status

approved