id:A074284 - OEIS Search Results

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Sum of the aliquot divisors of n-th triangular number.

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0, 1, 6, 8, 9, 11, 28, 55, 33, 17, 78, 90, 21, 87, 240, 134, 81, 89, 170, 366, 153, 35, 396, 568, 109, 209, 582, 314, 285, 303, 496, 960, 303, 269, 1242, 816, 57, 379, 1572, 944, 483, 505, 638, 1818, 837, 71, 1752, 2244, 542, 957, 1698, 890, 729, 1395, 2492, 2884 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000`
	EXAMPLE	`a(6)=11 because sum of aliquot divisors of 6th triangular number(i.e. 21) is 1+3+7=11.`
	CROSSREFS	`Sequence in context: A025070 A123704 A045574 this_sequence A125736 A030725 A043720` `Adjacent sequences: A074281 A074282 A074283 this_sequence A074285 A074286 A074287`
	KEYWORD	`nonn`
	AUTHOR	`Shyam Sunder Gupta (guptass(AT)rediffmail.com), Sep 21 2002`

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

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