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A117764
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Lucas numbers for which the sum of the digits is also a Lucas number.
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0
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1, 3, 4, 7, 29, 47, 322, 2207, 1149851, 10749957122, 119218851371, 312119004989, 505019158607, 84722519070079276, 8784200221406821330636, 1473646213395791149646646123, 2657608295638762232902023676028758508503879
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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EXAMPLE
| 1149851 is in the sequence because (1) it is a Lucas number and (2)the sum of its digits 1+1+4+9+8+5+1=29 is also a Lucas number.
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CROSSREFS
| Cf. A000204.
Sequence in context: A145593 A042037 A041091 * A113874 A007677 A042773
Adjacent sequences: A117761 A117762 A117763 * A117765 A117766 A117767
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KEYWORD
| base,nonn
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AUTHOR
| Luc Stevens (lms022(AT)yahoo.com), Apr 15 2006
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EXTENSIONS
| More terms from Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), May 11 2006
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