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 A084353 #10 Dec 17 2021 19:16:47 %S A084353 1,2,4,6,11,22,44,66,101,111,121,141,161,202,212,232,242,272,292,323, %T A084353 343,383,404,414,464,474,545,565,606,616,626,636,656,747,838,848,878, %U A084353 898,929,969,1001,1111,1221,1441,1661,2002,2112,2222,2332,2552,2772 %N A084353 Palindromes such that the product of the nonzero digits + 1 is prime. %H A084353 Harvey P. Dale, <a href="/A084353/b084353.txt">Table of n, a(n) for n = 1..1000</a> %t A084353 Select[Range[3000],PalindromeQ[#]&&PrimeQ[1+Times@@DeleteCases[ IntegerDigits[ #],0]]&] (* _Harvey P. Dale_, Dec 17 2021 *) %Y A084353 Cf. A084979. %K A084353 base,easy,nonn %O A084353 1,2 %A A084353 _Jason Earls_, Jun 22 2003