OFFSET
1,2
COMMENTS
See A007664 for further references etc.
REFERENCES
Paul Cull and E. F. Ecklund, On the Towers of Hanoi and generalized Towers of Hanoi problems. Proceedings of the thirteenth Southeastern conference on combinatorics, graph theory and computing (Boca Raton, Fla., 1982). Congr. Numer. 35 (1982), 229--238. MR0725883(85a:68059).
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Apr 08 2012
STATUS
approved