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A157611 Numbers n such that the n-th tribonacci number as defined by A000213 is prime. 3
3, 4, 6, 7, 10, 12, 13, 19, 23, 26, 32, 63, 95, 150, 324, 449, 1969, 2988, 6199, 8093, 23393, 25427, 34685, 35076, 44171, 45624, 83357, 116404 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next term is greater than 10000.

a(29) > 2*10^5. - Robert Price, Nov 15 2013

LINKS

Table of n, a(n) for n=1..28.

CROSSREFS

Cf. A000213, A056816.

Sequence in context: A143837 A330172 A206903 * A147609 A202169 A239438

Adjacent sequences:  A157608 A157609 A157610 * A157612 A157613 A157614

KEYWORD

nonn

AUTHOR

Dmitry Kamenetsky, Mar 03 2009

EXTENSIONS

a(21)-a(28) from Robert Price, Nov 15 2013

STATUS

approved

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Last modified February 26 03:09 EST 2020. Contains 332272 sequences. (Running on oeis4.)