1,2
Cf. A000041, A053067, A132926, A133013. See A134801 for another version.
Sequence in context: A077296 A080481 A120813 this_sequence A053068 A046969 A074094
Adjacent sequences: A134797 A134798 A134799 this_sequence A134801 A134802 A134803
easy,nonn
Omar E. Pol (info(AT)polprimos.com), Nov 12 2007
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