1,1
Sequence in context: A019331 A004454 A113548 this_sequence A112126 A010852 A072519
Adjacent sequences: A051389 A051390 A051391 this_sequence A051393 A051394 A051395
nonn,nice
Antti Karttunen and Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 1999.
Does this sequence only contain 10's and 13's?
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