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A133901
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Numbers in A128921 whose square is not a palindrome.
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1
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33, 99, 1119111, 10110901101, 11110901111, 101109901101, 1011109011101, 1110109010111, 10111099011101, 100110090011001, 100111090111001, 101011090110101, 111001090100111
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Also terms of A128921 that do not consist completely of digits 0, 1, 2, however excluding A128921(4) = 3.
Conjecture: Sequence is infinite.
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EXAMPLE
| A128921(41) = 1119111, 1119111^2 = 1252409430321 is not a palindrome, but its reverse is also a square: 1230349042521 = 1109211^2.
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CROSSREFS
| Cf. A128921 (palindromes p such that reverse of p^2 is also a square), A002113 (palindromes in base 10), A057135 (palindromes whose square is a palindrome), A057136 (palindromes whose square root is a palindrome).
Sequence in context: A195315 A098441 A032650 * A008880 A045613 A033574
Adjacent sequences: A133898 A133899 A133900 * A133902 A133903 A133904
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KEYWORD
| nonn,base
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AUTHOR
| Klaus Brockhaus (klaus-brockhaus(AT)t-online.de) and Zak Seidov (zakseidov(AT)yahoo.com), Sep 29 2007
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