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A250112
Number of symmetric primitive Lucas strings of length n.
2
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
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
Sequence in context: A374736 A005456 A100773 * A193775 A131120 A115195
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 19 2014
EXTENSIONS
More terms from Lars Blomberg, Dec 05 2016
STATUS
approved