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 A284290 #12 Sep 08 2022 08:46:19 %S A284290 41,43,47,149,241,347,349,401,409,419,421,431,433,439,443,449,457,461, %T A284290 463,467,479,487,491,499,541,547,641,643,647,743,941,947,1049,1249, %U A284290 1409,1423,1427,1429,1433,1439,1447,1451,1453,1459,1471,1481,1483,1487,1489 %N A284290 Primes containing a digit 4. %C A284290 Subsequence of A011534 and A062669. %H A284290 Amiram Eldar, <a href="/A284290/b284290.txt">Table of n, a(n) for n = 1..10000</a> %t A284290 Select[Range[1500], PrimeQ[#] && MemberQ[IntegerDigits[#], 4] &] (* _Amiram Eldar_, Nov 09 2019 *) %o A284290 (Magma) [p: p in PrimesUpTo(10000) | 4 in Intseq(p)] %Y A284290 Cf. Primes containing a digit k for k = 0 - 9: A056709 (k = 0), A208270 (k = 1), A208272 (k = 2), A212525 (k = 3), A284290 (k = 4), A257667 (k = 5), A284291 (k = 6), A257668 (k = 7), A284292 (k = 8), A106093 (k = 9). %K A284290 base,nonn %O A284290 1,1 %A A284290 _Jaroslav Krizek_, Mar 24 2017