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A347346 Smallest palindrome ending with n or 0 if n is a multiple of 10.

%I A347346 #18 Aug 30 2021 17:18:56
%S A347346 1,2,3,4,5,6,7,8,9,0,11,212,313,414,515,616,717,818,919,0,121,22,323,
%T A347346 424,525,626,727,828,929,0,131,232,33,434,535,636,737,838,939,0,141,
%U A347346 242,343,44,545,646,747,848,949,0,151,252,353,454,55,656,757,858,959
%N A347346 Smallest palindrome ending with n or 0 if n is a multiple of 10.
%H A347346 Chai Wah Wu, <a href="/A347346/b347346.txt">Table of n, a(n) for n = 1..10000</a>
%F A347346 If n is not a multiple of 10, then a(n) = A082216(A004086(n)).
%o A347346 (Python)
%o A347346 def A347346(n):
%o A347346     if n % 10 == 0:
%o A347346         return 0
%o A347346     s = str(n)
%o A347346     if s == s[::-1]:
%o A347346         return n
%o A347346     for i in range(1,len(s)):
%o A347346         if s[:-i]== s[-i-1::-1]:
%o A347346             return int(s[:-i-1:-1]+s)
%Y A347346 Cf. A004086, A082216, A347347.
%K A347346 nonn,base,look
%O A347346 1,2
%A A347346 _Chai Wah Wu_, Aug 27 2021