0,1

F. Rodriguez Villegas, L. Sadun & J.F. Voloch, Blet: A mathematical puzzle, Amer. Math. Monthly, 109 No.8 (2002), 729-740.

Sequence in context: A072969 A139712 A075365 this_sequence A135737 A125179 A141821

Adjacent sequences: A075271 A075272 A075273 this_sequence A075275 A075276 A075277

nonn

N. J. A. Sloane (njas(AT)research.att.com), Oct 12 2002