0,1
Cf. A000040, A033844, A018249, A051438, A051440.
Sequence in context: A139376 A074892 A074874 this_sequence A076051 A018116 A167796
Adjacent sequences: A051436 A051437 A051438 this_sequence A051440 A051441 A051442
nonn
N. J. A. Sloane (njas(AT)research.att.com).
More terms from Michael Lugo (mlugo(AT)thelabelguy.com), Dec 22 1999
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