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A269626 a(n) = A003418(n) / A058312(n). 1
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 55, 55, 55, 55, 55, 55, 55 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,16

LINKS

Table of n, a(n) for n=0..83.

PROG

(PARI) a(n)=lcm([1..n])/denominator(sum(k=1, n, (-1)^(k+1)/k))

CROSSREFS

Cf. A003418, A058312, A110566.

Sequence in context: A125563 A093704 A271509 * A269268 A112110 A142864

Adjacent sequences:  A269623 A269624 A269625 * A269627 A269628 A269629

KEYWORD

nonn

AUTHOR

Jeppe Stig Nielsen, Mar 01 2016

STATUS

approved

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Last modified February 24 11:06 EST 2018. Contains 299603 sequences. (Running on oeis4.)