id:A129346 - OEIS Search Results

Search: id:A129346

Displaying 1-1 of 1 results found.

page 1

a(2n) = A100525(n), a(2n+1) = A001653(n+1); a Pellian-related sequence.

+0
2

4, 5, 22, 29, 128, 169, 746, 985, 4348, 5741, 25342, 33461, 147704, 195025, 860882, 1136689, 5017588, 6625109, 29244646, 38613965, 170450288, 225058681, 993457082, 1311738121, 5790292204, 7645370045, 33748296142, 44560482149 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Summation with of -a(n) and A129345 returns twice Pell numbers A000129 (apart from signs; starting from 2nd term of A000129).`
	FORMULA	`Generating function (4+5x-2x^2-x^3)/((x^2-2x-1)(x^2+2*x-1)).`
	CROSSREFS	`Cf. A129345, A000129, A001542, A038761.` `Sequence in context: A099578 A109452 A091130 this_sequence A010302 A063986 A039583` `Adjacent sequences: A129343 A129344 A129345 this_sequence A129347 A129348 A129349`
	KEYWORD	`easy,nonn`
	AUTHOR	`Creighton Dement (creighton.k.dement(AT)uni-oldenburg.de), Apr 10 2007`

page 1

Search completed in 0.002 seconds

Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

AT&T Labs Research