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Search: id:A156223
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| 1, 4, 27, 108, 256, 1024, 3125, 6912, 12500, 27648, 46656, 84375, 186624, 337500, 800000, 823543, 1259712, 3200000, 3294172, 5038848, 11943936, 16777216, 21600000, 22235661, 47775744, 67108864
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OFFSET
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1,2
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EXAMPLE
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a(1) = 1 = 1^1
a(2) = 4 = 2^2
a(3) = 108 = 2^2 * 3^3
...
a(20) = 5038848 = 2^2 * 3^3 * 6^6
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MATHEMATICA
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Generating recursion (in Mathematica): p = {1};
For[x = 2, x <= 13, x++, {
p = Flatten@Append[p, p*x^x];
}];
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CROSSREFS
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Sequence in context: A092364 A071175 A063262 this_sequence A048102 A034512 A015534
Adjacent sequences: A156220 A156221 A156222 this_sequence A156224 A156225 A156226
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KEYWORD
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nonn
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AUTHOR
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Gabriel Benamy (GeicoGecko(AT)GMail.com), Feb 06 2009
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