id:A116449 - OEIS Search Results

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Number of partitions of n into an equal number of prime and composite parts.

+0
3

0, 0, 0, 0, 0, 1, 1, 1, 2, 1, 4, 3, 4, 4, 6, 6, 11, 11, 13, 17, 20, 26, 32, 37, 43, 55, 63, 81, 92, 111, 126, 159, 183, 225, 259, 307, 357, 430, 497, 589, 683, 797, 929, 1093, 1270, 1478, 1712, 1979, 2303, 2665, 3086, 3556, 4102, 4716, 5444, 6256, 7194, 8243, 9456, 10824 (list; graph; listen)

	OFFSET	`1,9`
	COMMENT	`a(n) = A002865(n) - A116450(n).`
	EXAMPLE	`a(14) = #{2+223, (2+2)+(23+22), 5+33, (3+3)+(22+22)} =` `4;` `a(15) = #{3+223, 5+25, (2+3)+(22+23), 7+222,` `(2+5)+(22+22), 11+2*2} = 6.`
	CROSSREFS	`Sequence in context: A105239 A130973 A093779 this_sequence A071046 A144334 A141210` `Adjacent sequences: A116446 A116447 A116448 this_sequence A116450 A116451 A116452`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 16 2006`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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