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A123927 Characteristic function of natural numbers with number of divisors equal to a Lucas number. 0
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Index entries for characteristic functions

CROSSREFS

Cf. A119885, A119911.

Sequence in context: A013595 A011582 A145568 * A168185 A011583 A011584

Adjacent sequences:  A123924 A123925 A123926 * A123928 A123929 A123930

KEYWORD

easy,nonn

AUTHOR

Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Nov 22 2006

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Last modified February 13 11:53 EST 2012. Contains 205468 sequences.