1,1
Cf. A096915, A137177.
Sequence in context: A032403 A072584 A139513 this_sequence A057191 A090548 A087309
Adjacent sequences: A144590 A144591 A144592 this_sequence A144594 A144595 A144596
nonn
M. F. Hasler (MHasler(AT)univ-ag.fr), Jan 13 2009
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