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A249968
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Numbers whose squares remain squares when prepended with 2 and appended with 25 in base 10.
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8
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16, 14130, 42260, 491230, 11192300, 18172350, 20878660, 565802820, 592874284, 2765209166, 19789454240, 35082937167210, 393840573502266, 7027165155369334, 12621688931426416, 14721538161161584, 24823861761554840, 26825614715841966, 707326082998942734
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OFFSET
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1,1
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COMMENTS
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Conjecture: squares of numbers in the sequence ends in either 00 or 56.
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LINKS
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EXAMPLE
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14130^2 = 199656900, 219965690025 = 469005^2.
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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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