1,1
Cf. A002808, A000290.
Sequence in context: A064751 A045787 A067474 this_sequence A086094 A055793 A144656
Adjacent sequences: A053766 A053767 A053768 this_sequence A053770 A053771 A053772
nonn
G. L. Honaker, Jr. (honak3r(AT)gmail.com), Mar 29 2000
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