Search: id:A068064 Results 1-1 of 1 results found. %I A068064 %S A068064 1,1,1,1,1,1,2,3,4,5,6,7,8,9,1,9,1,1,1,2,2,2,2,2,3,3,3,3,3,4,4,4,4,4,5, %T A068064 5,5,5,5,6,6,6,6,6,7,7,7,7,7,8,8,8,8,8,9,9,9,9,9,1,10,3,4,5,6,7,8,9,10, %U A068064 2,4,6,8,10,12,14,16,18,20,3,6,9,12,15,18,21,24,27,30,4,8,12,16,20,24 %N A068064 a(n) = number of integers k such that palindrome A068062(n) = k + reverse(k). %C A068064 The number of representions of a palindrome as a + b, where b = reverse(a); if a = reverse(b) and a is different from b, then a + b and b + a count as different representations. %e A068064 a(8) = 4, since A068062(8) = 44 and for k = 13, 22, 31, 40 we have 44 = k + reverse(k). a(15) = 9, since A068062(15) = 121 and for k = 29, 38, 47, 56, 65, 74, 83, 92, 110 we have 121 = k + reverse(k). %Y A068064 Cf. A002113, A067030, A067032, A068062. %Y A068064 Sequence in context: A112875 A113018 A113009 this_sequence A152147 A067032 A052500 %Y A068064 Adjacent sequences: A068061 A068062 A068063 this_sequence A068065 A068066 A068067 %K A068064 base,nonn %O A068064 0,7 %A A068064 Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Feb 16 2002 Search completed in 0.001 seconds