A083224 - OEIS

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A083224

(6*7^n+(-7)^n)/7.

1, 5, 49, 245, 2401, 12005, 117649, 588245, 5764801, 28824005, 282475249, 1412376245, 13841287201, 69206436005, 678223072849, 3391115364245, 33232930569601, 166164652848005, 1628413597910449, 8142067989552245 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 0..300`
	FORMULA	`a(n)=(67^n+(-7)^n)/7.` `G.f.: (1+5x)/((1+7x)(1-7x)).` `E.g.f.: (6exp(7x)+exp(-7x))/7.`
	PROG	`(MAGMA) [(6*7^n+(-7)^n)/7: n in [0..25]]; // Vincenzo Librandi, Jun 29 2011`
	CROSSREFS	`Cf. A083223, A083225.` `Sequence in context: A007406 A196326 A058927 * A201358 A093188 A198969` `Adjacent sequences: A083221 A083222 A083223 * A083225 A083226 A083227`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Apr 23 2003`

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Last modified February 16 06:43 EST 2012. Contains 205863 sequences.