A092810 - OEIS

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A092810

Binomial transform of a Jacobsthal trisection.

1, 6, 54, 486, 4374, 39366, 354294, 3188646, 28697814, 258280326, 2324522934, 20920706406, 188286357654, 1694577218886, 15251194969974, 137260754729766, 1235346792567894, 11118121133111046, 100063090197999414 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`Binomial transform of A082311.`
	FORMULA	`G.f.: (1-3x)/(1-9x); E.g.f.: 2exp(9x)/3+1/3; a(n)=2*9^n/3+0^n/3; a(n)=A054878(2n+1)-A054878(2n-1)+0^n/3=A015518(2n+1)-A015518(2n-1)+0^n/3.`
	MATHEMATICA	`Table[EulerPhi[9^n], {n, 0, 40}] [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Nov 10 2009]`
	CROSSREFS	`Cf. A001045.` `Sequence in context: A125837 A065088 A177484 * A092472 A098658 A109576` `Adjacent sequences: A092807 A092808 A092809 * A092811 A092812 A092813`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 10 2004`

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Last modified February 17 12:38 EST 2012. Contains 206021 sequences.