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Search: id:A121626
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| 1, -3, -26, 161, 2876, -27755, -740536, 9722113, 343603216, -5707904499, -250756091552, 5039646554593, 264489160965056, -6237995487261915, -380574552503498624, 10303367499652761601, 716309568462681538816, -21891769059478538933603
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OFFSET
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1,2
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COMMENT
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A115415 = Re(n + i)^n.
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FORMULA
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Re (1 + ni)^n.
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EXAMPLE
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a(4) = 161 since (1 + 4i)^4 = (161 - 240i).
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MATHEMATICA
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f[n_] := Re[(1 + n*I)^n]; Array[f, 18] - Robert G. Wilson v, Aug 17 2006
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CROSSREFS
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Cf. A115415.
Adjacent sequences: A121623 A121624 A121625 this_sequence A121627 A121628 A121629
Sequence in context: A055330 A034495 A034493 this_sequence A038697 A091262 A121121
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KEYWORD
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sign
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 12 2006
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EXTENSIONS
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More terms from Robert G. Wilson v, Aug 17 2006
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