1,1
Cf. A146538.
Sequence in context: A038343 A110965 A111147 this_sequence A069958 A028896 A034857
Adjacent sequences: A152536 A152537 A152538 this_sequence A152540 A152541 A152542
easy,nonn
Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Dec 07 2008
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