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A086291 Maximal exponent in prime factorization of 7-smooth numbers. +0
3
0, 1, 1, 2, 1, 1, 1, 3, 2, 1, 2, 1, 1, 4, 2, 2, 1, 3, 2, 3, 2, 1, 5, 1, 2, 3, 1, 2, 4, 2, 2, 3, 3, 2, 2, 6, 1, 3, 2, 4, 4, 2, 2, 5, 2, 2, 1, 3, 4, 3, 3, 2, 7, 3, 2, 4, 2, 2, 5, 4, 3, 2, 2, 3, 6, 2, 3, 1, 3, 5, 2, 4, 5, 2, 3, 2, 8, 3, 3, 5, 2, 2, 2, 6, 4, 4, 3, 2, 3, 3, 3, 7, 3, 4, 4, 2, 4, 2, 6, 2 (list; graph; listen)
OFFSET

1,4

COMMENT

a(n) = A051903(A002473(n));

A086290(n) <= a(n) <= A086289(n).

CROSSREFS

Sequence in context: A038538 A088529 A136565 this_sequence A016442 A076360 A089398

Adjacent sequences: A086288 A086289 A086290 this_sequence A086292 A086293 A086294

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 15 2003

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Last modified September 7 23:08 EDT 2008. Contains 143486 sequences.


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