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Search: id:A117395
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A117395 Number of partitions of n into parts that are neither all square-free, nor all not square-free. +0
3
0, 0, 0, 0, 1, 2, 3, 4, 8, 14, 20, 27, 40, 59, 80, 106, 145, 198, 262, 340, 447, 584, 751, 956, 1221, 1555, 1959, 2454, 3073, 3839, 4760, 5875, 7245, 8912, 10909, 13303, 16206, 19696, 23848, 28788, 34704, 41755, 50085 (list; graph; listen)
OFFSET

1,6

COMMENT

a(n) = A000041(n) - A073576(n) - A114374(n).

EXAMPLE

a(8) = #{2^2+3+1,2^2+2+2,2^2+2+1+1,2^2+1+1+1+1} = 4.

CROSSREFS

Cf. A005117, A013929.

Sequence in context: A091415 A091816 A100993 this_sequence A006755 A005853 A097029

Adjacent sequences: A117392 A117393 A117394 this_sequence A117396 A117397 A117398

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 11 2006

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.


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