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A117765 Lucas numbers for which the sum of the digits is a Fibonacci number. 0

%I #6 Mar 28 2015 09:41:51

%S 1,3,11,76,521,39603,271443,33385282,370248451,688846502588399,

%T 71420983074726546239,22291846172619859445381409012498,

%U 6957708846765958465433550193562787551898761

%N Lucas numbers for which the sum of the digits is a Fibonacci number.

%C The next term is too large to include. - _Joshua Zucker_, May 11 2006

%e 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.

%t With[{fibs=Fibonacci[Range[50]]},Select[LucasL[Range[300]], MemberQ[ fibs, Total[ IntegerDigits[#]]]&]] (* _Harvey P. Dale_, Mar 28 2015 *)

%Y Cf. A000045, A000204.

%K base,nonn

%O 1,2

%A Luc Stevens (lms022(AT)yahoo.com), Apr 15 2006

%E More terms from _Joshua Zucker_, May 11 2006

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Last modified March 5 06:03 EST 2024. Contains 370537 sequences. (Running on oeis4.)