A129740 Indices of primes in Somos-4 sequence (A006720).

4, 5, 6, 7, 8, 11, 13, 16, 43, 52, 206, 647

Offset

1,1

Comments

Sequence is probably finite - see A006720.

Links

Table of n, a(n) for n=1..12.

G. Everest et al., Primes generated by recurrence sequences, Amer. Math. Monthly, 114 (No. 5, 2007), 417-431.

Crossrefs

Cf. A006720, A129739, A129741.

Sequence in context: A047314 A298670 A039040 * A161428 A285429 A073073

Adjacent sequences: A129737 A129738 A129739 * A129741 A129742 A129743

Keyword

nonn,more

Author

N. J. A. Sloane, May 13 2007

Extensions

More terms (based on the entry A006720) from Stefan Steinerberger, Jun 06 2007

Status

approved