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Search: id:A155477
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| 43, 79507, 147008443, 271818611107, 502592611936843, 929293739471222707, 1718264124282290785243, 3177070365797955661914307, 5874403106360420018879553643
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OFFSET
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1,1
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COMMENT
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Number n such that if a=n, b=6n, c=11n, d=6n*sqrt(43n), then a^3+b^3+c^3=d^2; example: n=43=a, b=258, c=473, d=11094, 43^3+258^3+473^3=11094^2
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FORMULA
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a(n)= 43^(2n+1)
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EXAMPLE
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For n=0, a(0)=43; n=1, a(1)=43^3=79507
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CROSSREFS
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Sequence in context: A081795 A091748 A147522 this_sequence A125828 A116139 A087529
Adjacent sequences: A155474 A155475 A155476 this_sequence A155478 A155479 A155480
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KEYWORD
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nonn
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AUTHOR
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Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 23 2009
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