Annual appeal: Please make a donation to keep the OEIS running! Over 6000 articles have referenced us, often saying "we discovered this result with the help of the OEIS". Other ways to donate

1,2

Intersection of A108027 and A108028.

Table of n, a(n) for n=1..44.

s={}; Do[If[PrimeQ[137*n+139]&&PrimeQ[139*n+137], s=Append[s, n]], {n, 2000}]; s

Cf. A108027, A108028.

Sequence in context: A188250 A008524 A059677 * A123456 A144521 A044122

Adjacent sequences: A108105 A108106 A108107 * A108109 A108110 A108111

nonn

Zak Seidov, Jun 03 2005

approved