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 A062905 #16 Jul 04 2025 12:37:32 %S A062905 0,510,525,540,555,570,585,5010,5025,5040,5055,5070,5085,5100,5115, %T A062905 5130,5145,5160,5175,5190,5205,5220,5235,5250,5265,5280,5295,5310, %U A062905 5325,5340,5355,5370,5385,5400,5415,5430,5445,5460,5475,5490,5505,5520,5535 %N A062905 Numbers k such that k and its reversal are both multiples of 15. %e A062905 5025 and 5205 are both multiples of 15. %o A062905 (ARIBAS) n := 15; stop := 5600; m := 0; while m < stop do rev := int_reverse(m); if rev mod n = 0 then write(m," "); end; inc(m,n); end; %K A062905 nonn,base,easy %O A062905 1,2 %A A062905 _Amarnath Murthy_, Jul 01 2001 %E A062905 Corrected and extended by _Dean Hickerson_, Jul 06 2001