id:A099857 - OEIS Search Results

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Expansion of (1+3x+x^2)/(1-3x+x^2).

+0
2

1, 6, 18, 48, 126, 330, 864, 2262, 5922, 15504, 40590, 106266, 278208, 728358, 1906866, 4992240, 13069854, 34217322, 89582112, 234529014, 614004930, 1607485776, 4208452398, 11017871418, 28845161856, 75517614150, 197707680594 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=0^n+6*Fib(2n).`
	CROSSREFS	`Cf. A000045, A099856, A099858.` `Adjacent sequences: A099854 A099855 A099856 this_sequence A099858 A099859 A099860` `Sequence in context: A128543 A003202 A003198 this_sequence A086926 A003290 A075650`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Oct 28 2004`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

AT&T Labs Research