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Search: id:A145552
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| A145552 |
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Square numbers which can be expressed as the sum of 2 cubes in 2 different ways |
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+0
2
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OFFSET
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1,1
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COMMENT
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This is conjectured to be an infinite sequence.
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EXAMPLE
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a(1): 6080256576 = 77976^2 = 1824^3 + 228^3 = 1710^3 + 1026^3; a(2): 49991146569 = 223587^2 = 3666^3 + 897^3 = 3276^3 + 2457^3; a(3): 389136420864 = 623808^2 = 7296^3 + 912^3 = 6840^3 + 4104^3; a(4): 799858345104 = 894348^2 = 9282^3 + 546^3 = 9009^3 + 4095^3
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CROSSREFS
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A145553
Sequence in context: A104830 A034646 A046894 this_sequence A004675 A011524 A127342
Adjacent sequences: A145549 A145550 A145551 this_sequence A145553 A145554 A145555
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KEYWORD
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nonn
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AUTHOR
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Iain Renfrew (iain.renfrew(AT)btinternet.com), Oct 13 2008
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