id:A160473 - OEIS Search Results

Search: id:A160473

Displaying 1-1 of 1 results found.

page 1

The p(n) sequence that is associated with the Eta triangle A160464

+0
6

3, 30, 315, 11340, 311850, 12162150, 638512875, 86837751000, 7424627710500, 779585909602500, 98617617564716250, 14792642634707437500, 2596108782391155281250, 527010082825404522093750 (list; graph; listen)

	OFFSET	`2,1`
	FORMULA	`a(n) = 2^(-(2(n-1)-1-floor(ln(n-1)/ln(2))))(2*n-1)! for n = 2, 3, 4 , .. .`
	CROSSREFS	`A160464 is the Eta triangle.` `Equals 3(n-2)!A000457(n-2)/A054243(n-1)` `Equals 2^(-A049039(n-1))(2n-1)!` `Contribution from Johannes W. Meijer (meijgia(AT)hotmail.com), Jul 06 2009: (Start)` `Cf. The pg(n) sequence A162440.` `(End)` `Sequence in context: A037659 A131586 A163475 this_sequence A144283 A058831 A007004` `Adjacent sequences: A160470 A160471 A160472 this_sequence A160474 A160475 A160476`
	KEYWORD	`easy,nonn`
	AUTHOR	`Johannes W. Meijer (meijgia(AT)hotmail.com), May 24 2009`

page 1

Search completed in 0.002 seconds

Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

AT&T Labs Research