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A057640 Floor(H(n)+exp(H(n))*log(H(n))), where H(n) = Sum_{k=1..n} 1/k. 5
1, 3, 5, 7, 10, 12, 15, 17, 20, 23, 25, 28, 31, 33, 36, 39, 41, 44, 47, 50, 53, 56, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124, 127, 130, 133, 136, 139, 142, 145, 149, 152, 155, 158, 161 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

T. D. Noe, Table of n, a(n) for n=1..1000

J. C. Lagarias, An elementary problem equivalent to the Riemann hypothesis, Am. Math. Monthly 109 (#6, 2002), 534-543.

MATHEMATICA

hn[n_]:=Module[{h=HarmonicNumber[n]}, Floor[h+Exp[h]Log[h]]]; Array[hn, 60] (* Harvey P. Dale, Aug 02 2013 *)

CROSSREFS

Cf. A057641.

Sequence in context: A184741 A020959 A175312 * A182136 A211266 A037030

Adjacent sequences:  A057637 A057638 A057639 * A057641 A057642 A057643

KEYWORD

nonn,nice,easy

AUTHOR

N. J. A. Sloane, Oct 12 2000

STATUS

approved

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Last modified April 18 22:08 EDT 2019. Contains 322237 sequences. (Running on oeis4.)