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 A208549 #11 Aug 04 2025 18:41:14
%S A208549 2189,7208,20538,69632,127790,265375,341267,461849,621457,1453179,
%T A208549 1700469,1828994,1837608,2114852,2222674,2354838,2826692,2905552,
%U A208549 2933084,3162302,3466663,3972552,3996543,4535984,5382039,6192528,6392223
%N A208549 Numbers m such that 2520*m/k + 1 is a prime for k = 1,...,7.
%C A208549 Equivalently, 7!*m/2+k equals k times a prime, for k=1,...,7. The primes 2520m+1 are listed in A207825, and are also the terms of the sequence A071369 which end in the digit "1".
%F A208549 A208549(n) = (A207825(n)-1)/2520.
%o A208549 (PARI) {my(p=1); until(, isprime(p+=2520) || next; for(j=2,7, isprime(p\j+1)||next(2)); print1(p\2520", "))}
%K A208549 nonn
%O A208549 1,1
%A A208549 _M. F. Hasler_, Feb 28 2012