A118775 Sum of two consecutive Chen primes.

5, 8, 12, 18, 24, 30, 36, 42, 52, 60, 68, 78, 88, 100, 112, 126, 138, 154, 172, 190, 208, 216, 222, 240, 258, 268, 276, 288, 306, 324, 346, 360, 372, 388, 396, 410, 438, 460, 472, 490, 508, 520, 532, 550, 574, 600, 618, 628, 654, 684, 700, 712, 738, 768, 790

Offset

1,1

Links

Table of n, a(n) for n=1..55.

Mathematica

ch=SequencePosition[PrimeOmega[Range[500]], {1, _, 1|2}][[All, 1]] ; Table[ch[[n]]+ch[[n+1]], {n, 55}] (* James C. McMahon, Sep 16 2024 *)

Crossrefs

Cf. A109611.

Sequence in context: A362243 A069102 A001043 * A025001 A020749 A120135

Adjacent sequences: A118772 A118773 A118774 * A118776 A118777 A118778

Keyword

nonn

Author

Luc Stevens (lms022(AT)yahoo.com), May 22 2006

Status

approved