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Search: id:A063734
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| A063734 |
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Square abundant numbers. |
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+0
1
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| 36, 100, 144, 196, 324, 400, 576, 784, 900, 1296, 1600, 1764, 1936, 2304, 2500, 2704, 2916, 3136, 3600, 4356, 4624, 4900, 5184, 5776, 6084, 6400, 7056, 7744, 8100, 8464, 9216, 9604, 10000, 10404, 10816, 11025, 11664, 12100, 12544, 12996, 13456, 14400
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,1000
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PROGRAM
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(PARI) j=[]; for(n=1, 25000, if(sigma(n)>(2*n), a=n; if(issquare(a), j=concat(j, a)))); j
(PARI) { n=0; for (m=1, 10^9, if (issquare(m) && sigma(m)>(2*m), write("b063734.txt", n++, " ", m); if (n==1000, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 29 2009]
(PARI) { n=0; for (m=1, 10^9, s=m^2; if (sigma(s)>(2*s), write("b063734.txt", n++, " ", s); if (n==1000, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 29 2009]
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CROSSREFS
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Cf. A005101.
Sequence in context: A137945 A072413 A131605 this_sequence A069057 A062703 A043438
Adjacent sequences: A063731 A063732 A063733 this_sequence A063735 A063736 A063737
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KEYWORD
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nonn
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AUTHOR
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Jason Earls (zevi_35711(AT)yahoo.com), Aug 13 2001
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