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Search: id:A133901
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| 33, 99, 1119111, 10110901101, 11110901111, 101109901101, 1011109011101, 1110109010111, 10111099011101, 100110090011001, 100111090111001, 101011090110101, 111001090100111
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OFFSET
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1,1
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COMMENT
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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
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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
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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: A044601 A098441 A032650 this_sequence A008880 A045613 A033574
Adjacent sequences: A133898 A133899 A133900 this_sequence A133902 A133903 A133904
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KEYWORD
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nonn,base
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AUTHOR
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Klaus Brockhaus (klaus-brockhaus(AT)t-online.de) and Zak Seidov (zakseidov(AT)yahoo.com), Sep 29 2007
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