3,1
Luc Kumps, personal communication.
Cf. A061030 - A061033.
Sequence in context: A136169 A047041 A154223 this_sequence A054187 A014743 A080889
Adjacent sequences: A061028 A061029 A061030 this_sequence A061032 A061033 A061034
nonn
Ed Pegg Jr (ed(AT)mathpuzzle.com), May 25 2001
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