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A086300 Arithmetic derivative of 7-smooth numbers. +0
1
0, 1, 1, 4, 1, 5, 1, 12, 6, 7, 16, 9, 8, 32, 21, 24, 10, 44, 10, 27, 32, 31, 80, 12, 60, 68, 41, 39, 112, 14, 45, 81, 92, 92, 51, 192, 59, 156, 55, 176, 108, 124, 123, 272, 77, 140, 71, 216, 240, 244, 75, 165, 448, 162, 188, 384, 91, 185, 432, 297, 332, 95, 336 (list; graph; listen)
OFFSET

1,4

COMMENT

a(n) = A003415(A002473(n)).

CROSSREFS

Sequence in context: A029644 A024919 A003415 this_sequence A028271 A029666 A131230

Adjacent sequences: A086297 A086298 A086299 this_sequence A086301 A086302 A086303

KEYWORD

nonn

AUTHOR

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

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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