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A112809 Positions of records in A110566. 1
1, 6, 20, 21, 42, 120, 342, 506, 567, 594, 600, 610, 2184, 4896, 6108, 6162, 6498, 12760, 14067, 14157, 14201, 93942, 123462, 123519, 734413, 2451397, 4591010, 11571129, 13346540, 13619348, 13619790, 46180567 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..32.

MATHEMATICA

c = 0; a = h = 1; t = {}; Do[a = LCM[a, n]; h = h + 1/n; b = a/Denominator[h]; If[b > c, c = b; AppendTo[t, n]], {n, 10^6}]; t

PROG

(PARI) lista(nn) = {rec = 0; for (n=1, nn, new = lcm(vector(n, k, k))/denominator(sum(k=1, n, 1/k)); if (new > rec, print1(n, ", "); rec = new); ); } \\ Michel Marcus, Mar 07 2018

CROSSREFS

Cf. A110566, A001008, A002805, A003418, A025529, A098464, A112810.

Sequence in context: A096897 A063601 A222604 * A289659 A237043 A243905

Adjacent sequences:  A112806 A112807 A112808 * A112810 A112811 A112812

KEYWORD

more,nonn

AUTHOR

Robert G. Wilson v, Sep 19 2005

EXTENSIONS

a(27)-a(28) from Amiram Eldar, Dec 18 2018

a(29)-a(31) from Chai Wah Wu, Mar 08 2021

a(32) from Chai Wah Wu, Mar 14 2021

STATUS

approved

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Last modified June 24 11:11 EDT 2021. Contains 345416 sequences. (Running on oeis4.)