1,3
(* see programming in A074165 *)
Cf. A074165.
Sequence in context: A133056 A131917 A019785 this_sequence A005596 A096385 A088837
Adjacent sequences: A074173 A074174 A074175 this_sequence A074177 A074178 A074179
nonn
Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 16 2002
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