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 A043310 #13 Mar 04 2021 08:59:07 %S A043310 1,2,3,4,5,36,38,39,40,41,72,73,75,76,77,108,109,110,112,113,144,145, %T A043310 146,147,149,180,181,182,183,184,1297,1298,1299,1300,1301,1368,1369, %U A043310 1371,1372,1373,1404,1405,1406,1408,1409,1440,1441,1442,1443,1445,1476,1477 %N A043310 a(n)=A033004(n)/7. %C A043310 Also: Numbers which, written in base 36, have all digits less than 6 and no two adjacent digits equal. - _M. F. Hasler_, Feb 03 2014 %o A043310 (PARI) is_A043310(n)=(n=[n])&&!until(!n[1],((n=divrem(n[1],36))[2]<6 && n[1]%6!=n[2])||return) \\ _M. F. Hasler_, Feb 03 2014 %Y A043310 Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029. %K A043310 nonn,base %O A043310 1,2 %A A043310 _Clark Kimberling_ %E A043310 Definition corrected by and more terms from _Georg Fischer_, Mar 04 2021