A121700 Numbers n such that floor((prime(n+1)/prime(n))^n) is prime.

2, 3, 5, 6, 7, 11, 12, 14, 16, 18, 19, 21, 22, 24, 25, 27, 29, 31, 38, 39, 40, 44, 47, 48, 50, 51, 54, 55, 56, 58, 59, 63, 65, 66, 67, 68, 70, 71, 73, 74, 75, 76, 78, 84, 85, 86, 88, 90, 93, 95, 96, 100, 102, 103, 105, 107, 108, 110, 111, 112, 117, 118, 119, 122, 123, 127

Offset

1,1

Links

Paolo Xausa, Table of n, a(n) for n = 1..10000

Mathematica

Select[Range[200], PrimeQ[Floor[(Prime[# + 1]/Prime[#])^#]] &] (* Paolo Xausa, May 05 2024 *)

Crossrefs

Cf. A121699.

Sequence in context: A348440 A339267 A288863 * A080980 A334067 A134669

Adjacent sequences: A121697 A121698 A121699 * A121701 A121702 A121703

Keyword

easy,nonn

Author

Jason Earls, Aug 16 2006

Status

approved