1,2
1 (1); 11 (3); 110 (6); 1101 (13); 11011 (27); 110111 (55); ...
Cf. A030190, A054633, A055074, A055144-A055150.
Sequence in context: A033129 A079403 A065830 this_sequence A092539 A094386 A099036
Adjacent sequences: A055140 A055141 A055142 this_sequence A055144 A055145 A055146
nonn,base
Patrick De Geest (pdg(AT)worldofnumbers.com), Apr 15 2000.
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