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A249621
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Squares that remain squares when prepended with 1 and appended with 25 in base 10.
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8
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81390384100, 1406394753724900, 35835016467147821056, 40988174007950912656, 50380850763055363600, 4792217024781750114460900, 284966691269408660851864225156, 14530422026948661087028976772730756, 30683674238436575795584244321722756
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OFFSET
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1,1
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COMMENTS
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Conjecture: all the numbers in the sequence end in either 00 or 56.
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LINKS
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FORMULA
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EXAMPLE
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81390384100 = 285290^2 and 18139038410025 = 4258995^2.
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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