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 A281380 #8 Apr 01 2025 15:19:13 %S A281380 1,3,5,11,19,43,91,123,135,327,455,551,935,1127,1383,1767,2023,2071, %T A281380 2839,3223,3991,4183,4695,5463,5975,6359,6871,7639,8151,8247,9783, %U A281380 10551,12087,12471,14007,14775,16311,16503,17527,19063,20087,20855,21879,23415,24439,24823,25847,27383 %N A281380 Numbers which are palindromic in their Elias delta code representation. %C A281380 Number n, such that A281150(n) is palindromic. %H A281380 Indranil Ghosh, <a href="/A281380/b281380.txt">Table of n, a(n) for n = 1..1012</a> %e A281380 43 is in the sequence because Elias delta code for 43 is '1101001011' and '1101001011' is palindromic. %o A281380 (Python) %o A281380 i=1 %o A281380 j=1 %o A281380 while j<=1012: %o A281380 if A281150(i)==A281150(i)[::-1] : %o A281380 print(str(j)+" "+str(i)) %o A281380 j+=1 %o A281380 i+=1 %Y A281380 Cf. A006995, A281150, A281379. %K A281380 nonn,base %O A281380 1,2 %A A281380 _Indranil Ghosh_, Jan 21 2017