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 A359224 #14 Dec 25 2022 14:12:42 %S A359224 0,1,2,3,4,5,6,23,46,2116,15226,32361 %N A359224 Numbers whose decimal representation is the reverse of their base-7 representation. %e A359224 23 is a term since 23_7 = 32 which reversed is 23. %e A359224 32361 is a term since 32361_7 = 163230 which reversed is 032361 and the leading 0 is disregarded. %o A359224 (PARI) isok(n) = fromdigits(Vecrev(digits(n, 7))) == n %Y A359224 Cf. A004086, A007093. %K A359224 nonn,base,more %O A359224 1,3 %A A359224 _Mohammed Yaseen_, Dec 21 2022 %E A359224 a(12) from _Jon E. Schoenfield_, Dec 21 2022