A092738 Primes of the form prime(x)+prime(x+1)+1.

13, 19, 31, 37, 43, 53, 61, 79, 101, 113, 139, 163, 173, 199, 211, 223, 241, 269, 277, 331, 353, 373, 397, 457, 463, 509, 521, 541, 577, 601, 619, 631, 727, 773, 787, 811, 829, 853, 883, 907, 919, 947, 967, 991, 1013, 1031, 1181, 1193, 1201, 1231, 1237

Offset: 1

Author

Jorge Coveiro, Apr 12 2004

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A001043, A072669.

Programs

Mathematica

f[n_] := Prime[n] + Prime[n + 1] + 1; f[ # ] & /@ Select[ Range[120], PrimeQ[ f[ # ]] &] (* Robert G. Wilson v, Apr 14 2004 *)

PARI

list(lim)=my(v=List(),p=2,t);forprime(q=3,,t=p+q+1;if(t>lim,return(Vec(v)));if(isprime(t),listput(v,t))) \\ Charles R Greathouse IV, Mar 19 2013

Extensions

More terms from Robert G. Wilson v, Apr 14 2004