A081890 - OEIS

This site is supported by donations to The OEIS Foundation.

A081890

A sum of decreasing powers.

1, 3, 7, 33, 643, 11073, 151867, 1816713, 19996963, 208630833, 2099398027, 20597485593, 198424412083, 1885822419393, 17740469253787, 165580566245673, 1535948935336003, 14178113530908753, 130361707324735147 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`Binomial transform of A081687`
	FORMULA	`a(n)=9^n-8^n-7^n-6^n+3*5^n`
	CROSSREFS	`Cf. A081691.` `Sequence in context: A057795 A054935 A024496 * A192880 A179115 A047907` `Adjacent sequences: A081887 A081888 A081889 * A081891 A081892 A081893`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 30 2003`

Content is available under The OEIS End-User License Agreement .

Last modified February 17 18:27 EST 2012. Contains 206066 sequences.