id:A013612 - OEIS Search Results

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Triangle of coefficients in expansion of (1+5x)^n.

+0
3

1, 1, 5, 1, 10, 25, 1, 15, 75, 125, 1, 20, 150, 500, 625, 1, 25, 250, 1250, 3125, 3125, 1, 30, 375, 2500, 9375, 18750, 15625, 1, 35, 525, 4375, 21875, 65625, 109375, 78125, 1, 40, 700, 7000, 43750, 175000, 437500, 625000, 390625, 1, 45, 900 (list; table; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Mirror image of A038243. - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Nov 25 2007`
	FORMULA	`G.f.: 1 / [1 - x(1+5y)].`
	CROSSREFS	`Sequence in context: A063475 A135855 A116547 this_sequence A112830 A062967 A067292` `Adjacent sequences: A013609 A013610 A013611 this_sequence A013613 A013614 A013615`
	KEYWORD	`tabl,nonn,easy`
	AUTHOR	`njas`

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Last modified August 29 16:48 EDT 2008. Contains 143238 sequences.

AT&T Labs Research