A134729 Concatenation of next n Sophie Germain primes A005384(n).

2, 35, 112329, 41538389, 113131173179191, 233239251281293359, 419431443491509593641, 653659683719743761809911, 95310131019103110491103122312291289, 1409143914511481149915111559158316011733, 18111889190119311973200320392063206921292141

Offset: 1

Author

Omar E. Pol, Nov 10 2007

Keywords

• base
• easy
• nonn

Crossrefs

Cf. A005384, A053067, A133013, A133014.

Programs

Mathematica

With[{sgp=Select[Prime[Range[500]],PrimeQ[2#+1]&]},Table[ FromDigits[ Flatten[IntegerDigits/@Take[sgp,{(n(n+1))/2+1,((n+1)(n+2))/2}]]],{n,0,11}]] (* Harvey P. Dale, Mar 24 2013 *)

Extensions

More terms from Harvey P. Dale, Mar 24 2013