id:A092810 - OEIS Search Results

Search: id:A092810

Displaying 1-1 of 1 results found.

page 1

Binomial transform of a Jacobsthal trisection.

+0
1

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

	OFFSET	`0,2`
	COMMENT	`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: A043026 A125837 A065088 this_sequence A092472 A098658 A109576` `Adjacent sequences: A092807 A092808 A092809 this_sequence A092811 A092812 A092813`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 10 2004`

page 1

Search completed in 0.002 seconds

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research