id:A112422 - OEIS Search Results

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Number of 6-element subsets of {1,2,3,...,n} for which the sum-set has 13 elements.

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3, 11, 19, 27, 35, 43, 54, 65, 81, 97, 113, 129, 148, 167, 186, 210, 234, 258, 285, 312, 339, 366, 398 (list; graph; listen)

	OFFSET	`7,1`
	FORMULA	`3x^7/((1-x)^2(1-x^6))+5x^8(1-x)^2(1-x^7))`
	CROSSREFS	`Sequence in context: A043433 A078583 A017101 this_sequence A125994 A137295 A038536` `Adjacent sequences: A112419 A112420 A112421 this_sequence A112423 A112424 A112425`
	KEYWORD	`nonn`
	AUTHOR	`David S Newman (DavidSNewman(AT)hotmail.com), Dec 10 2005`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.