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A092836
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Prime tribonacci numbers.
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5
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OFFSET
| 1,1
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COMMENTS
| The next term is too large to fit.
These primes are A000073(k) at k = 4, 6, 7, 11, 87, 98, 215, 802, 4202,... The indices in A092835 are off by one. - R. J. Mathar, Dec 14 2011
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REFERENCES
| 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
| Harry J. Smith, Table of n, a(n) for n=1,...,8
Eric Weisstein's World of Mathematics, Tribonacci Number
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PROG
| (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
| Cf. A000073, A092835, A056816.
Sequence in context: A072060 A106912 A099629 * A102152 A102156 A102151
Adjacent sequences: A092833 A092834 A092835 * A092837 A092838 A092839
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KEYWORD
| nonn
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com), Mar 06 2004
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