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Search: id:A112821
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| A112821 |
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Numbers n such that LCM(1,2,3,...,n)/19 equals the denominator of the n-th harmonic number H(n). |
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+0
10
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| 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Positions where 19 occurs in A110566.
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LINKS
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Tanya Khovanova, Non Recursions
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MATHEMATICA
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a = h = 1; t = {}; Do[a = LCM[a, n]; h = h + 1/n; If[a/Denominator[h] == 19, AppendTo[t, n]], {n, 10^6}]; t
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CROSSREFS
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Cf. A002805, A003418, A110566.
Cf. A098464, A112813, A112814, A112815, A112816, A112817, A112818, A112819, A112820, A112822.
Sequence in context: A035844 A028681 A005072 this_sequence A045130 A045269 A043395
Adjacent sequences: A112818 A112819 A112820 this_sequence A112822 A112823 A112824
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KEYWORD
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nonn,more
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 17 2005
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EXTENSIONS
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Definition corrected by Max Alekseyev, Mar 03 2007
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