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 A153863 Second-to-smallest of four consecutive Fibonacci numbers such that sum of four consecutive Fibonacci numbers is prime number. 10
 1, 2, 5, 8, 34, 89, 377, 610, 1597, 514229, 9227465, 63245986, 1134903170, 20365011074, 956722026041, 117669030460994, 5527939700884757, 70492524767089125814114, 44225333398004061429732838340729878012027363723832270745251370289 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS 1+1+2+3=7, 1+2+3+5=11, 3+5+8+13=29, 5+8+13+21=47, 21+34+55+89=199,... LINKS Harvey P. Dale, Table of n, a(n) for n = 1..27 MATHEMATICA a=0; b=1; c=1; lst={}; Do[d=Fibonacci[n]; p=a+b+c+d; If[PrimeQ[p], AppendTo[lst, b]]; a=b; b=c; c=d, {n, 3, 6!}]; lst Select[Partition[Fibonacci[Range[200]], 4, 1], PrimeQ[Total[#]]&][[All, 2]] (* Harvey P. Dale, Aug 28 2016 *) CROSSREFS Cf. A000045, A001906, A000071, A001605, A153862 Sequence in context: A025533 A295970 A086809 * A153890 A130378 A323461 Adjacent sequences:  A153860 A153861 A153862 * A153864 A153865 A153866 KEYWORD nonn AUTHOR Vladimir Joseph Stephan Orlovsky, Jan 03 2009 EXTENSIONS One more term from Harvey P. Dale, Aug 28 2016 STATUS approved

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Last modified May 25 06:43 EDT 2022. Contains 354049 sequences. (Running on oeis4.)