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 A155071 #15 Jul 22 2025 12:34:17 %S A155071 11,13,17,19,31,37,53,59,71,73,79,97,101,103,107,109,127,149,163,167, %T A155071 181,211,233,239,251,257,271,277,293,307,347,349,367,383,389,419,431, %U A155071 433,439,457,479,491,499,503,509,521,523,541,547,563,569,587,613,617 %N A155071 Primes with two odd digits. %H A155071 Harvey P. Dale, <a href="/A155071/b155071.txt">Table of n, a(n) for n = 1..1000</a> %t A155071 Select[Prime[Range[200]],Count[IntegerDigits[#],_?OddQ]==2&] (* _Harvey P. Dale_, Jul 22 2025 *) %Y A155071 Cf. A104638. %K A155071 nonn,base %O A155071 1,1 %A A155071 _Juri-Stepan Gerasimov_, Jan 19 2009 %E A155071 Definition clarified, keyword:fini removed, 413 replaced by 419 - _R. J. Mathar_, May 05 2010 %E A155071 Erroneous comment deleted by _Harvey P. Dale_, Jul 22 2025