A222320 Number of open Skolem sequences of order n.

1, 2, 4, 8, 20, 52, 146, 430, 1306, 4176, 13832, 47452, 169044, 619672, 234225

Offset: 1

Author

N. J. A. Sloane, Feb 18 2013

Keywords

• nonn
• more

Links

• S. Burrill and L. Yen, Constructing Skolem sequences via generating trees, arXiv preprint arXiv:1301.6424, 2013

Crossrefs

Cf. A004075.