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A226383
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Numbers for which there is at least one 3-smooth representation that is special of level k.
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2
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5, 7, 11, 19, 19, 23, 29, 31, 35, 37, 47, 49, 53, 65, 65, 67, 73, 79, 85, 85, 89, 89, 97, 101, 103, 119, 121, 121, 125, 131, 133, 143, 143, 149, 151, 157, 161, 169, 175, 179, 185, 185, 197, 205, 211, 211, 215, 221, 223, 227, 233, 239, 251, 259, 259, 259, 269, 271, 275, 277, 283, 287, 287, 289, 313, 313, 319, 323, 323
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OFFSET
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0,1
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COMMENTS
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These numbers are of the form 3^k*2^0 + 3^{k-1}*2^{a_1} + ... + 3^1*2^{a_{k-1}} + 3^0*2^{a_k} in which every power 3^i appears, 0 <= i <= k, and where a_i satisfies a_0 = 0, a_0 < a_1 < ... < a_k.
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REFERENCES
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Kenneth Vollmar, Recursive calculation of 3-smooth representations special of level k, To be submitted mid-2013.
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LINKS
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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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