2,2
J. O'Rourke, Art Gallery Theorems and Algorithms, Oxford Univ. Press, 1987, p. 223.
Sequence in context: A024178 A009312 A154251 this_sequence A086252 A106926 A133558
Adjacent sequences: A092272 A092273 A092274 this_sequence A092276 A092277 A092278
nonn
N. J. A. Sloane (njas(AT)research.att.com), Feb 17 2004
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