id:A028343 - OEIS Search Results

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Expansion of prod( (1-x^i)^(1/i), i = 1..infinity); also of exp(- sum( d(n)*x^n /n, n = 1..infinity)) where d is number of divisors function.

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1, -1, -1, 1, -1, 41, -131, 1499, -4159, 10639, 100871, 4142249, -111459041, 1127459321, 1797229589, -185028952109, 706529394689, 29136228245279, -547852336663409, 7139784702100049, -195178627579232449 (list; graph; listen)

	OFFSET	`0,6`
	CROSSREFS	`Sequence in context: A142290 A013643 A142333 this_sequence A142449 A044373 A044754` `Adjacent sequences: A028340 A028341 A028342 this_sequence A028344 A028345 A028346`
	KEYWORD	`sign`
	AUTHOR	`Jeffrey Shallit (shallit(AT)graceland.uwaterloo.ca)`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

AT&T Labs Research