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 A237601 #14 Nov 09 2018 21:31:26 %S A237601 6,16,37,60,74,77,63,39,22,11,5,2,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, %T A237601 0,0,0,0,0,0,0,0 %N A237601 Number of n-digit right-truncatable primes in base 16. %C A237601 See A237600 for a complete list of right-truncatable primes in base 16. %H A237601 Stanislav Sykora, <a href="https://oeis.org/wiki/File:GeneticThreads.txt">PARI/GP scripts for genetic threads</a> %F A237601 a(n) = 0 for n >= 15. %e A237601 a(2)=16 because there are 16 right truncatable hex numbers with two hex digits: 25,29,2B,2F,35,3B,3D,53,59,71,7F,B3,B5,BF,D3,DF. %o A237601 (PARI) See the link (use GT_DivMod0 with arguments "isprime" for "property" and 16 for "b"). %o A237601 (PARI) A237601=vector(15,n,#p=concat(apply(t->primes([t,t+1]*16),if(n>1,p)))) \\ _M. F. Hasler_, Nov 07 2018 %Y A237601 Cf. A050986 (base 10), A237600, A237602. %K A237601 nonn,base %O A237601 1,1 %A A237601 _Stanislav Sykora_, Feb 15 2014