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 A183108 #10 Feb 20 2023 07:51:55 %S A183108 1,2,3,4,5,7,43,130,146,166,201,205,211,221,241,244,251,271,274,281, %T A183108 314,325,365,388,422,433,443,463,489,519,559,633,685,793,827,857,877, %U A183108 887,1841,2021,2111,2221,2284,2305,2441,2551,2561,2666,2751,2881 %N A183108 Numbers m such that sum of divisors of m and sum of palindromic divisors of m are both palindromic. %C A183108 Numbers m such that A000203(m) and A088000(m) are both palindromic. %e A183108 a(8) = 130, divisors of 130: 1, 2, 5, 10, 13, 26, 65, 130; palindromic divisors of 130: 1, 2, 5; A000203(130) = 252, A088000(130) = 8; both numbers are palindromic. %o A183108 (Sage) is_palindrome = lambda n, base=10: n.str(base) == n.str(base)[::-1] %o A183108 A000203 = sigma %o A183108 A088000 = lambda n: sum(d for d in divisors(n) if is_palindrome(d)) %o A183108 is_A183108 = lambda n: is_palindrome(A000203(n)) and is_palindrome(A088000(n)) # _D. S. McNeil_, Dec 28 2010 %Y A183108 Cf. A000203, A088000. %K A183108 nonn,base %O A183108 1,2 %A A183108 _Jaroslav Krizek_, Dec 25 2010