id:A027151 - OEIS Search Results

Search: id:A027151

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a(n) = T(n,0) + T(n,1) + ... + T(n,n), T given by A027144.

+0
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1, 3, 7, 21, 45, 135, 291, 873, 1881, 5643, 12159, 36477, 78597, 235791, 508059, 1524177, 3284145, 9852435, 21229047, 63687141, 137226717, 411680151, 887047443, 2661142329, 5733964809, 17201894427, 37064931183, 111194793549 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`G.f.: (1+3x)(1+x^2)/(1-6x^2-3x^4).`
	CROSSREFS	`Sequence in context: A018689 A119959 A018712 this_sequence A092203 A018760 A050614` `Adjacent sequences: A027148 A027149 A027150 this_sequence A027152 A027153 A027154`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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