A067848 prime(n)+1 divides prime(n^2)+1.

1, 2, 3, 16, 93, 947, 62627, 165517

Offset

1,2

Comments

a(9) > 3*10^5. [From Donovan Johnson, Nov 15 2009]

Links

Table of n, a(n) for n=1..8.

Example

prime(3)+1 = 6, prime(3^2)+1 = 30, so 3 is a term of the sequence.

Mathematica

Select[Range[10^5], Mod[Prime[ #^2] + 1, Prime[ # ] + 1] == 0 &]

Crossrefs

Sequence in context: A371613 A254382 A354610 * A269067 A370201 A356882

Adjacent sequences: A067845 A067846 A067847 * A067849 A067850 A067851

Keyword

nonn

Author

Joseph L. Pe, Feb 14 2002

Extensions

a(7)-a(8) from Donovan Johnson, Nov 15 2009

Status

approved