id:A049981 - OEIS Search Results

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a(n)=number of arithmetic progressions of positive integers, strictly increasing with sum <=n.

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1, 2, 4, 6, 9, 13, 17, 21, 28, 34, 40, 49, 56, 64, 77, 86, 95, 110, 120, 132, 150, 163, 175, 195, 210, 225, 248, 265, 280, 308, 324, 342, 370, 390, 412, 445, 464, 486, 519, 545, 566, 605, 627, 653, 696, 723, 747, 790, 817, 850 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A098387 A135072 A038709 this_sequence A025705 A022792 A025697` `Adjacent sequences: A049978 A049979 A049980 this_sequence A049982 A049983 A049984`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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

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