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 A384527 #11 Jun 05 2025 22:00:18 %S A384527 17,47,257,587,1277,4637,14537,19457,71327,101267,113147,115757, %T A384527 150197,179807,191447,193367,267887,302567,344237,408197,416387, %U A384527 442817,482387,536267,566537,652727,886967,1043747,1268777,1300127,1373147,1464257,1589657,1616597,1988237 %N A384527 Primes p such that p + 6, p + 12, p + 14, p + 20 and p + 26 are also primes. %C A384527 Initial members of prime sextuples that correspond to the difference pattern [6, 6, 2, 6, 6]. %F A384527 a(n) == 17 (mod 30). - _Hugo Pfoertner_, Jun 01 2025 %e A384527 p=257: 257+6=263, 257+12=269, 257+14=271, 257+20=277, 257+26=283 —> prime sextuple: (257, 263, 269, 271, 277, 283). %t A384527 Select[Prime[Range[150000]],PrimeQ[#+6]&&PrimeQ[#+12]&&PrimeQ[#+14]&&PrimeQ[#+20]&&PrimeQ[#+26] &] (* _Stefano Spezia_, Jun 01 2025 *) %Y A384527 Cf. A000040, A001223. %Y A384527 Cf. A023241 [6, 6], A140565 [6, 2, 6]. %K A384527 nonn %O A384527 1,1 %A A384527 _Alexander Yutkin_, Jun 01 2025