id:A048035 - OEIS Search Results

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Number of nonempty subsets of {1,2,...,n} in which exactly 4/5 of the elements are <= (n-3)/3.

+0
1

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 12, 13, 65, 70, 75, 225, 240, 255, 595, 630, 665, 1501, 1590, 1680, 4536, 4851, 5175, 16215, 17460, 18750, 57750, 62205, 66825, 190035, 204246, 218979, 590759, 634075, 679055, 1836471 (list; graph; listen)

	OFFSET	`1,15`
	CROSSREFS	`Sequence in context: A097932 A031300 A111019 this_sequence A048015 A061082 A055100` `Adjacent sequences: A048032 A048033 A048034 this_sequence A048036 A048037 A048038`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research