A157611 Numbers n such that the n-th tribonacci number as defined by A000213 is prime.

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

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: A354005 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