This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A088710 #12 Jun 23 2025 10:03:33 %S A088710 9,10,14,15,21,26,33,35,38,39,51,62,65,69,77,86,91,93,95,111,122,123, %T A088710 129,133,146,159,161,201,203,206,209,213,215,217,218,221,249,278,287, %U A088710 291,299,301,302,303,305,321,335,339,362,371,381,386,395,398,403,407 %N A088710 Numbers m which are a product of two primes j and k such that m-j-k is prime. %H A088710 Harvey P. Dale, <a href="/A088710/b088710.txt">Table of n, a(n) for n = 1..1000</a> %e A088710 10 is a term because 10 has only one pair of prime factors (2 and 5) and 10-2-5=3 which is prime. %t A088710 ptpQ[n_]:=PrimeOmega[n]==2&&PrimeQ[n-Total[Flatten[Table[#[[1]],#[[2]]]&/@ FactorInteger[n]]]]; Select[Range[500],ptpQ] (* _Harvey P. Dale_, Jun 04 2018 *) %Y A088710 Cf. A001358. %K A088710 nonn %O A088710 1,1 %A A088710 _Chuck Seggelin_, Oct 11 2003