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A004143
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From the powers that be.
(Formerly M1386)
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0
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0, 1, 2, 5, 10, 40, 40, 106, 5627, 14501, 330861, 658110
(list; graph; refs; listen; history; internal format)
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OFFSET
| 2,3
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REFERENCES
| R. B. Eggleton, P. Erdos and J. L. Selfridge, The powers that be, Amer. Math. Monthly, 83 (1976), 801-805.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Sequence in context: A144636 A018418 A155217 * A103036 A173112 A018439
Adjacent sequences: A004140 A004141 A004142 * A004144 A004145 A004146
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KEYWORD
| nonn,nice
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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