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A087188 Number of partitions of n into distinct squarefree parts. 1
1, 1, 2, 1, 2, 3, 3, 4, 4, 5, 6, 6, 8, 9, 10, 13, 14, 16, 18, 20, 24, 27, 30, 35, 37, 42, 47, 51, 59, 64, 72, 81, 88, 98, 109, 120, 134, 147, 163, 179, 195, 216, 236, 258, 284, 310, 339, 371, 403, 441, 480, 523, 572, 621, 675, 734, 796, 865, 937, 1014, 1100, 1189 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

FORMULA

O.g.f.: product_{i=1,2,...infinity} [1+x^A005117(i)]. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 16 2008

EXAMPLE

n=9: 5+3+1 = 6+2+1 = 6+3 = 7+2: a(9)=4;

n=10: 5+3+2 = 6+3+1 = 7+2+1 = 7+3 = 10: a(10)=5.

CROSSREFS

Cf. A073576, A000009, A005117.

Sequence in context: A081366 A129636 A048219 * A102885 A138585 A070048

Adjacent sequences:  A087185 A087186 A087187 * A087189 A087190 A087191

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 24 2003

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Last modified February 16 17:11 EST 2012. Contains 205938 sequences.