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A077615 a(n) is least k such that A077614(k)=n or 0 if there is none. 1
1, 4, 31, 255, 431, 432, 1727, 2700, 21599, 21600, 10800, 10799, 43200, 43199 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Sequence in context: A183911 A039765 A001091 * A025506 A039306 A081054

Adjacent sequences:  A077612 A077613 A077614 * A077616 A077617 A077618

KEYWORD

nonn,more

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Nov 11 2002

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.