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Search: id:A027829
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| A027829 |
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Palindromic squares with an even number of digits. |
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+0
2
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| 698896, 637832238736, 4099923883299904, 6916103777337773016196, 40460195511188111559106404, 4872133543202112023453312784, 9658137819052882509187318569, 46501623417708833880771432610564
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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C. Ashbacher, On palindromic squares, J. Rec. Math., 22 (No,2, 1990), 133-.
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LINKS
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K. S. Brown, On General Palindromic Numbers
P. De Geest, Palindromic Squares
P. De Geest, Subsets of Palindromic Squares
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CROSSREFS
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Cf. A016113.
Adjacent sequences: A027826 A027827 A027828 this_sequence A027830 A027831 A027832
Sequence in context: A068745 A010084 A114676 this_sequence A140943 A134615 A083613
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KEYWORD
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nonn,base
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AUTHOR
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Keith Devlin, via Boon Leong (boon_leong(AT)hotmail.com)
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EXTENSIONS
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2 new terms were recently found by Bennett from UK (communication from Patrick De Geest (pdg(AT)worldofnumbers.com)).
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