A260037 Number of missing lengths of Christoffel words of order n.

0, 0, 1, 2, 5, 11, 18, 29, 51, 74, 119, 195, 323, 498, 828, 1361, 2289, 3801, 6305, 10560

Offset

0,4

Links

Table of n, a(n) for n=0..19.

A. de Luca and A. de Luca, Sturmian words and the Stern sequence, arXiv:1410.4085 [cs.DM], 2014.

Crossrefs

Sequence in context: A025200 A264724 A298375 * A132455 A132459 A308517

Adjacent sequences: A260034 A260035 A260036 * A260038 A260039 A260040

Keyword

nonn,more

Author

N. J. A. Sloane, Jul 19 2015

Status

approved