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A053956
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Numbers k such that k^2 contains only digits {4,6,7}.
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1
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2, 8, 26, 88, 2108238, 8165033238, 876154475408, 2538991467974, 2728823494615908, 253863101778786762, 815277035409723028858892
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OFFSET
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1,1
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LINKS
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CROSSREFS
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KEYWORD
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nonn,base,more
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AUTHOR
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EXTENSIONS
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More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005
Three more terms from Mishima's website added by Max Alekseyev, May 07 2009
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STATUS
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approved
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