0,5
Carlos Rivera, The Prime Puzzles & Problems Connection: Puzzle 172.
a(7)=2: 1.1.1.1.11.1.1.2.13.7.17.1.3.5.1 and 1.1.1.1.11.2.1.1.13.7.17.1.5.3.1.
Sequence in context: A018943 A019024 A135071 this_sequence A128647 A071730 A058815
Adjacent sequences: A096216 A096217 A096218 this_sequence A096220 A096221 A096222
nonn
Ray G. Opao (1260(AT)email.com), Jul 29 2004
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