1,2
Cf. A138383.
Sequence in context: A120462 A061592 A081631 this_sequence A129886 A133837 A121682
Adjacent sequences: A137171 A137172 A137173 this_sequence A137175 A137176 A137177
easy,sign
Odimar Fabeny (aifab(AT)yahoo.com.br), May 11 2008
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