1,1
Cf. A030684.
Adjacent sequences: A030680 A030681 A030682 this_sequence A030684 A030685 A030686
Sequence in context: A133211 A029947 A030673 this_sequence A038840 A032599 A016839
nonn,base
Patrick De Geest (pdg(AT)worldofnumbers.com)
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