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 A386090 #6 Jul 16 2025 23:39:07 %S A386090 2,3,11,13,19,23,29,31,113,131,139,191,193,199,211,223,229,233,239, %T A386090 293,311,313,331,911,919,929,991,1123,1129,1193,1213,1223,1229,1231, %U A386090 1291,1319,1321,1399,1913,1931,1933,1993,1999,2111,2113,2129,2131,2213,2221,2239 %N A386090 Primes having only {1, 2, 3, 9} as digits. %H A386090 Jason Bard, <a href="/A386090/b386090.txt">Table of n, a(n) for n = 1..10000</a> %H A386090 <a href="/index/Pri#PrimesWithDigits">Index to entries for primes with digits in a given set</a> %t A386090 Flatten[Table[Select[FromDigits /@ Tuples[{1, 2, 3, 9}, n], PrimeQ], {n, 7}]] %o A386090 (Magma) [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 2, 3, 9]]; %o A386090 (Python) print(list(islice(primes_with("1239"), 41))) # uses function/imports in A385776 %o A386090 (PARI) primes_with(, 1, [1, 2, 3, 9]) \\ uses function in A385776 %Y A386090 Supersequence of A062350, A260128, A329761, A385776. %Y A386090 Cf. A000040, A385776. %K A386090 nonn,base,easy %O A386090 1,1 %A A386090 _Jason Bard_, Jul 16 2025