id:A081684 - OEIS Search Results

Search: id:A081684

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A sum of decreasing powers.

+0
2

1, -1, -1, 29, 275, 1829, 10739, 59429, 318275, 1670789, 8656979, 44454629, 226827875, 1151991749, 5830280819, 29429454629, 148249811075, 745630312709, 3745590106259, 18797445635429, 94264432179875, 472428649241669, 2366562219717299, 11850466059333029 (list; graph; listen)

	OFFSET	`0,4`
	COMMENT	`Inverse binomial transform of A081685`
	FORMULA	`a(n)=5^n-4^n-3^n-2^n+3`
	CROSSREFS	`Adjacent sequences: A081681 A081682 A081683 this_sequence A081685 A081686 A081687` `Sequence in context: A042634 A120823 A110692 this_sequence A142033 A142905 A124310`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 30 2003`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

AT&T Labs Research