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Search: id:A092836
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| A092836 |
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Prime tribonacci numbers. |
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+0
3
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| 2, 7, 13, 149, 19341322569415713958901, 15762679542071167858843489, 145082467753351661438130501937754420584096000083183992629
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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The next term is too large to fit.
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REFERENCES
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Tony D. Noe and Jonathan Vos Post, Primes in Fibonacci n-step and Lucas n-step Sequences, Journal of Integer Sequences, Vol. 8 (2005), Article 05.4.4.
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,8
Eric Weisstein's World of Mathematics, Tribonacci Number
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PROGRAM
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(PARI) t(m)= { if (m==0, return(a1)); if (m==1, return(a2)); if (m==2, return(a3)); r = a1 + a2 + a3; a1=a2; a2=a3; a3=r; return(r); } { a1=0; a2=1; a3=1; n=0; for (m=0, 1000, a=t(m); if (isprime(a), write("b092836.txt", n++, " ", a))); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 21 2009]
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CROSSREFS
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Cf. A000073, A092835.
Sequence in context: A072060 A106912 A099629 this_sequence A102152 A102156 A102151
Adjacent sequences: A092833 A092834 A092835 this_sequence A092837 A092838 A092839
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KEYWORD
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nonn
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com), Mar 06, 2004
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