1,1
Cf. A046330, A046378.
Sequence in context: A131645 A015310 A043516 this_sequence A098936 A031846 A164972
Adjacent sequences: A046407 A046408 A046409 this_sequence A046411 A046412 A046413
nonn,more,base
Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1998.
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