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A085819 Prod(A085818(k): k<=n). 1
1, 2, 6, 12, 60, 420, 4620, 9240, 27720, 360360, 6126120, 116396280, 2677114440, 77636318760, 2406725881560, 4813451763120, 178097715235440, 7302006324653040, 313986271960080720, 14757354782123793840 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

n divides a(n), see A085818.

LINKS

Table of n, a(n) for n=1..20.

CROSSREFS

Cf. A000040, A000142, A002110.

Sequence in context: A051451 A090951 A168262 * A069047 A095921 A106037

Adjacent sequences:  A085816 A085817 A085818 * A085820 A085821 A085822

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Jul 04 2003

STATUS

approved

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Last modified November 12 04:21 EST 2019. Contains 329051 sequences. (Running on oeis4.)