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 A386073 #6 Jul 16 2025 05:29:58 %S A386073 409,449,499,4049,4099,4409,4649,4909,4969,4999,6449,6469,6949,9049, %T A386073 9649,9949,40009,40099,40499,40609,40699,40949,44449,44699,44909, %U A386073 46049,46099,46499,46649,49009,49069,49409,49499,49669,49999,60449,60649,64499,64609,64969 %N A386073 Primes having only {0, 4, 6, 9} as digits. %H A386073 Jason Bard, <a href="/A386073/b386073.txt">Table of n, a(n) for n = 1..10000</a> %H A386073 <a href="/index/Pri#PrimesWithDigits">Index to entries for primes with digits in a given set</a> %t A386073 Select[FromDigits /@ Tuples[{0, 4, 6, 9}, n], PrimeQ] %o A386073 (Magma) [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [0, 4, 6, 9]]; %o A386073 (Python) print(list(islice(primes_with("0469"), 41))) # uses function/imports in A385776 %o A386073 (PARI) primes_with(, 1, [0, 4, 6, 9]) \\ uses function in A385776 %Y A386073 Subsequence of A030433, A061372. %Y A386073 Supersequence of A107666, A385768. %Y A386073 Cf. A000040, A385776. %K A386073 nonn,base,easy %O A386073 1,1 %A A386073 _Jason Bard_, Jul 16 2025