A020838 - OEIS

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A020838

Expansion of 1/((1-7x)(1-8x)(1-10x)).

1, 25, 419, 5885, 74811, 892605, 10199659, 113009005, 1223954171, 13030808285, 136920690699, 1424085096525, 14693717768731, 150657001125565, 1537006821834539, 15618310264486445, 158202271944562491 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Index to sequences with linear recurrences with constant coefficients, signature (25,-206,560).`
	FORMULA	`a(n) = 25a(n-1) - 206a(n-2) + 560a(n-3), n>=3. - Vincenzo Librandi, Mar 15 2011` `a(n) = 18a(n-1) - 80a(n-2) + 7^n, n>=2. - Vincenzo Librandi, Mar 15 2011` `a(n) = 7^(n+2)/3 +510^(n+1)/3 -4*8^(n+1). - R. J. Mathar, Mar 15 2011`
	CROSSREFS	`Sequence in context: A023952 A025991 A022628 * A025975 A025953 A020595` `Adjacent sequences: A020835 A020836 A020837 * A020839 A020840 A020841`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 17 14:12 EST 2012. Contains 206031 sequences.