Primes p such that (p-k)/(k+1) is also prime for k = 1, 2, 3.

Terms

a(0) =11a(1) =23a(2) =719a(3) =1439a(4) =5639a(5) =25799a(6) =28319a(7) =35879a(8) =56039a(9) =58679a(10) =77279a(11) =98999a(12) =104759a(13) =121559a(14) =166919a(15) =174599a(16) =206639a(17) =253679a(18) =334319a(19) =350159a(20) =424079a(21) =433439a(22) =451679a(23) =452759a(24) =535919a(25) =539159a(26) =582719a(27) =595319a(28) =645839a(29) =671039