id:A139131 - OEIS Search Results

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Squarefree kernel of n*(n+1)/2.

+0
3

1, 3, 6, 10, 15, 21, 14, 6, 15, 55, 66, 78, 91, 105, 30, 34, 51, 57, 190, 210, 231, 253, 138, 30, 65, 39, 42, 406, 435, 465, 62, 66, 561, 595, 210, 222, 703, 741, 390, 410, 861, 903, 946, 330, 345, 1081, 282, 42, 35, 255, 1326, 1378, 159, 165, 770, 798, 1653, 1711 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = A007947(A000217(n));` `a(A014601(n)) = A078636(A014601(n));` `a(n) = A078636(n) / A014695(n).`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 1..1000`
	CROSSREFS	`Sequence in context: A138777 A096895 A034175 this_sequence A130485 A115015 A056150` `Adjacent sequences: A139128 A139129 A139130 this_sequence A139132 A139133 A139134`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 10 2008`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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