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 A117765 Lucas numbers for which the sum of the digits is a Fibonacci number. 0
 1, 3, 11, 76, 521, 39603, 271443, 33385282, 370248451, 688846502588399, 71420983074726546239, 22291846172619859445381409012498, 6957708846765958465433550193562787551898761 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS The next term is too large to include. - Joshua Zucker, May 11 2006 LINKS Table of n, a(n) for n=1..13. EXAMPLE 39603 is in the sequence because (1)it is a Lucas number and (2)the sum of its digits 3+9+6+0+3=21 is a Fibonacci number. MATHEMATICA With[{fibs=Fibonacci[Range[50]]}, Select[LucasL[Range[300]], MemberQ[ fibs, Total[ IntegerDigits[#]]]&]] (* Harvey P. Dale, Mar 28 2015 *) CROSSREFS Cf. A000045, A000204. Sequence in context: A181388 A196691 A197064 * A220146 A046153 A163856 Adjacent sequences: A117762 A117763 A117764 * A117766 A117767 A117768 KEYWORD base,nonn AUTHOR Luc Stevens (lms022(AT)yahoo.com), Apr 15 2006 EXTENSIONS More terms from Joshua Zucker, May 11 2006 STATUS approved

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Last modified November 29 20:40 EST 2023. Contains 367447 sequences. (Running on oeis4.)