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A329111
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a(n) = round(b(n)) where b(n) = b(n-1)^(b(n-1)^(1/b(n-1))) and b(1)=2.
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0
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2, 3, 4, 7, 14, 24, 37, 54, 73, 95, 119, 145, 172, 201, 232, 264, 297, 332, 368, 405, 442, 481, 521, 562, 604, 647, 690, 735, 780, 826, 872, 919, 967, 1016, 1065, 1115, 1166, 1217, 1268, 1321, 1373, 1427, 1481, 1535, 1590, 1645, 1701, 1758
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refs;
listen;
history;
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internal format)
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(1) = 2 because round(b(1)) = 2;
a(2) = 3 because round(2^(2^(1/2))) = 3;
a(3) = 4 because round(b(2)^(b(2)^(1/b(2)))) = 4.
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MATHEMATICA
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PROG
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(JavaScript)
var x = 2;
var g = [];
for (var i = 0; i < 400; i++) {
x=Math.pow(x, Math.pow(x, 1/x));
appendItem(g, Math.round(x));
}
console.log(g);
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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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