A069101 a(1) = 2; a(2) = 2; a(n) = Prime[a(n-1) + a(n-2)] if n > 2.

2, 2, 7, 23, 113, 769, 6857, 77591, 1082321, 18143791, 358320709, 8198050243, 214312177217, 6327738745987

Offset

1,1

Links

Table of n, a(n) for n=1..14.

Example

a(3) = Prime[a(2) + a(1)] = Prime[2 + 2] = Prime(4) = 7.

Mathematica

RecurrenceTable[{a[1]==a[2]==2, a[n]==Prime[a[n-1]+a[n-2]]}, a, {n, 14}] (* Harvey P. Dale, Sep 08 2015 *)

Crossrefs

Sequence in context: A307426 A343577 A342644 * A221648 A138802 A292016

Adjacent sequences: A069098 A069099 A069100 * A069102 A069103 A069104

Keyword

nonn

Author

Joseph L. Pe, Apr 06 2002

Extensions

More terms from Harvey P. Dale, Sep 08 2015

Status

approved