A245879 Number of distinct fractional chromatic numbers among all connected graphs on n nodes.

1, 1, 2, 3, 5, 7, 11, 17, 29, 50

Offset

1,3

Links

Table of n, a(n) for n=1..10.

Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs

T. Hoppe and A. Petrone, Integer sequence discovery from small graphs, arXiv preprint arXiv:1408.3644, 2014

Eric Weisstein's World of Mathematics, Fractional Chromatic Number

Crossrefs

Cf. A243251 (fractional chromatic gap).

Sequence in context: A077673 A071255 A062294 * A113016 A085136 A068868

Adjacent sequences: A245876 A245877 A245878 * A245880 A245881 A245882

Keyword

nonn,hard,more

Author

Travis Hoppe and Anna Petrone, Aug 05 2014

Status

approved