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A086297 Square-free kernels of 7-smooth numbers. +0
1
1, 2, 3, 2, 5, 6, 7, 2, 3, 10, 6, 14, 15, 2, 6, 10, 21, 6, 5, 3, 14, 30, 2, 35, 6, 10, 42, 15, 6, 7, 10, 6, 14, 30, 21, 2, 70, 6, 15, 10, 3, 42, 30, 6, 14, 10, 105, 6, 14, 30, 5, 42, 2, 15, 70, 6, 21, 30, 10, 6, 42, 35, 30, 21, 6, 14, 10, 210, 6, 14, 15, 30, 3, 35, 10, 42, 2 (list; graph; listen)
OFFSET

1,2

COMMENT

a(n) = A007947(A002473(n));

a(n) <= 210=7*5*3*2; range = A018336.

CROSSREFS

Sequence in context: A056552 A049273 A053590 this_sequence A056554 A088835 A007947

Adjacent sequences: A086294 A086295 A086296 this_sequence A086298 A086299 A086300

KEYWORD

nonn

AUTHOR

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

page 1

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.


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