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A018023
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Powers of cube root of 16 rounded up.
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21
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1, 3, 7, 16, 41, 102, 256, 646, 1626, 4096, 10322, 26008, 65536, 165141, 416128, 1048576, 2642246, 6658043, 16777216, 42275936, 106528682, 268435456, 676414964, 1704458901, 4294967296, 10822639410, 27271342416, 68719476736, 173162230555
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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With[{c=16^(1/3)}, Ceiling[c^Range[0, 30]]] (* Harvey P. Dale, Oct 09 2012 *)
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PROG
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CROSSREFS
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Cf. powers of cube root of k ceiling up: A017981 (k=2), A017984 (k=3), A017987 (k=4), A017990 (k=5), A017993 (k=6), A017996 (k=7), A018002 (k=9), A018005 (k=10), A018008 (k=11), A018011 (k=12), A018014 (k=13), A018017 (k=14), A018020 (k=15), this sequence (k=16), A018026 (k=17), A018029 (k=18), A018032 (k=19), A018035 (k=20), A018038 (k=21), A018041 (k=22), A018044 (k=23), A018047 (k=24).
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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