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Search: id:A085819
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A085819 Prod(A085818(k): k<=n). +0
2
1, 2, 6, 12, 60, 420, 4620, 9240, 27720, 360360, 6126120, 116396280, 2677114440, 77636318760, 2406725881560, 4813451763120, 178097715235440, 7302006324653040, 313986271960080720, 14757354782123793840 (list; graph; listen)
OFFSET

1,2

COMMENT

n divides a(n), see A085818.

CROSSREFS

Cf. A000040, A000142, A002110.

Sequence in context: A162935 A051451 A090951 this_sequence A069047 A095921 A106037

Adjacent sequences: A085816 A085817 A085818 this_sequence A085820 A085821 A085822

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 04 2003

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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