A004421 - OEIS

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A004421

Expansion of (Sum x^(n^2), n = -inf .. inf )^(-20).

1, -40, 840, -12320, 141640, -1358448, 11297440, -83631680, 561539400, -3468363400, 19922193200, -107343635040, 546373245600, -2642351627440, 12200693947200, -54007656632000, 230002160331080, -945228781171920 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A162176 A162402 A010992 * A190825 A054340 A013350` `Adjacent sequences: A004418 A004419 A004420 * A004422 A004423 A004424`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 16 04:47 EST 2012. Contains 205860 sequences.