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 A235862 Indices of primes in the tribonacci-like sequence, A141523. 41
 0, 3, 4, 5, 8, 10, 14, 16, 24, 30, 40, 54, 63, 66, 67, 109, 188, 203, 421, 463, 704, 730, 798, 1155, 1259, 1376, 1789, 2095, 2650, 3833, 4538, 4794, 4840, 5386, 8348, 15176, 17282, 21250, 21386, 21825, 31242, 32843, 33706, 37026, 47546, 66848 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(47) > 2*10^5. LINKS Tony D. Noe and Jonathan Vos Post, Primes in Fibonacci n-step and Lucas n-step Sequences, J. of Integer Sequences, Vol. 8 (2005), Article 05.4.4 MATHEMATICA a={3, 1, 1}; Print[0]; For[n=3, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], Print[n]]; a=RotateLeft[a]; a[[3]]=sum] CROSSREFS Cf. A001590, A100683, A231574, A231575, A232542, A214899, A230607, A020992, A232498, A214727, A081172, A214752, A141523. Sequence in context: A278998 A211533 A079136 * A228305 A103329 A080726 Adjacent sequences:  A235859 A235860 A235861 * A235863 A235864 A235865 KEYWORD nonn AUTHOR Robert Price, Jan 16 2014 STATUS approved

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Last modified June 4 04:39 EDT 2020. Contains 334815 sequences. (Running on oeis4.)