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A054609
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Sum_{d|10} phi(d)*n^(10/d).
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1
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0, 10, 1080, 59340, 1049680, 9768870, 60474120, 282492280, 1073774880, 3486843810, 10000100440, 25937586180, 61917613680, 137858863870, 289255193640, 576651150960, 1099512677440, 2015995321530, 3570469117560, 6131068735420, 10240003201680, 16679885064150
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OFFSET
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0,2
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LINKS
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T. D. Noe, Table of n, a(n) for n = 0..1000
Index to sequences with linear recurrences with constant coefficients, signature (11,-55,165,-330,462,-462,330,-165,55,-11,1).
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FORMULA
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G.f.: -10*x*(100*x^8 +4783*x^7 +45547*x^6 +130963*x^5 +131119*x^4 +45469*x^3 +4801*x^2 +97*x +1) / (x -1)^11. [Colin Barker, Dec 21 2012]
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MATHEMATICA
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Table[DivisorSum[10, EulerPhi[#] n^(10/#) &], {n, 0, 100}] (* T. D. Noe, Mar 27 2012 *)
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CROSSREFS
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Sequence in context: A004810 A208560 A190945 * A119045 A069886 A133383
Adjacent sequences: A054606 A054607 A054608 * A054610 A054611 A054612
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane, Apr 16 2000
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STATUS
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approved
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