1,1
Cf. A005101, A118466.
Sequence in context: A022227 A132291 A022217 this_sequence A077302 A070189 A102335
Adjacent sequences: A133370 A133371 A133372 this_sequence A133374 A133375 A133376
nonn
Hans Havermann (pxp(AT)rogers.com), Dec 21 2007
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