id:A115362 - OEIS Search Results

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Row sums of ((1,x)+(x,x^2))^(-1)*((1,x)-(x,x^2))^(-1) (using Riordan array notation).

+0
1

1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 3 (list; graph; listen)

	OFFSET	`0,4`
	COMMENT	`Row sums of the matrix product A115358*A115361.` `Generalized Ruler Function for k=4 - Frank Ruskey (http://www.cs.uvic.ca/~ruskey/) and Chris Deugau (deugaucj(AT)uvic.ca)`
	FORMULA	`g.f.: A(z) = sum(k>=0, x^4^k/(1-x^4^k)) - Frank Ruskey (http://www.cs.uvic.ca/~ruskey/) and Chris Deugau (deugaucj(AT)uvic.ca)`
	CROSSREFS	`Sequence in context: A022929 A161102 A161101 this_sequence A161100 A053543 A161099` `Adjacent sequences: A115359 A115360 A115361 this_sequence A115363 A115364 A115365`
	KEYWORD	`nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jan 21 2006`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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