A088710 Numbers m which are a product of two primes j and k such that m-j-k is prime.

9, 10, 14, 15, 21, 26, 33, 35, 38, 39, 51, 62, 65, 69, 77, 86, 91, 93, 95, 111, 122, 123, 129, 133, 146, 159, 161, 201, 203, 206, 209, 213, 215, 217, 218, 221, 249, 278, 287, 291, 299, 301, 302, 303, 305, 321, 335, 339, 362, 371, 381, 386, 395, 398, 403, 407

Offset: 1

Author

Chuck Seggelin, Oct 11 2003

Keywords

• nonn

Examples

			10 is a term because 10 has only one pair of prime factors (2 and 5) and 10-2-5=3 which is prime.
		

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A001358.

Programs

Mathematica

ptpQ[n_]:=PrimeOmega[n]==2&&PrimeQ[n-Total[Flatten[Table[#[[1]],#[[2]]]&/@ FactorInteger[n]]]]; Select[Range[500],ptpQ] (* Harvey P. Dale, Jun 04 2018 *)