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A216245
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Sum of 1/a(n)^2 approaches sqrt(3) with partial sums staying below.
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1
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1, 2, 2, 3, 3, 11, 26, 109, 1227, 51420, 8988362, 32710914040, 7771377209846338, 490053183865066320353971, 273597849253997654907692972401071423, 337927017741012348216065570192997747462584982737948593
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OFFSET
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1,2
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LINKS
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PROG
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(PARI) default(realprecision, 10^5);
lista(n) = {x = sqrt(3); for (i=1, n, a = ceil(1/sqrt(x)); print1(a, ", "); x -= 1/a^2; ); }
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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