OFFSET
2,4
COMMENTS
Coincides with A130515 for n >= 6.
LINKS
George I. Bell, Table of n, a(n) for n = 2..52
George I. Bell, Solving Triangular Peg Solitaire [arXiv:math/0703865v4]
G. I. Bell, Solving Triangular Peg Solitaire, JIS 11 (2008) 08.4.8
FORMULA
Reference gives an explicit formula for a(n).
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 09 2007
EXTENSIONS
More terms from George I. Bell (gibell(AT)comcast.net), Sep 27 2007
STATUS
approved