id:A027958 - OEIS Search Results

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a(n) = T(n,m) + T(n,m+1) + ... + T(n,n), where m=[ (n+2)/2 ], T given by A027948.

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1, 1, 4, 5, 20, 32, 95, 169, 424, 793, 1816, 3488, 7583, 14789, 31172, 61357, 126892, 251200, 513343, 1019921, 2068496, 4119281, 8313584, 16580800, 33358015, 66594637, 133703500, 267089189, 535524644, 1070217248, 2143959071 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`G.f.: x(-2x^6+6x^4+x^3-2x^2-x+1)/[(1-x^2)(1-2x)(1+x-x^2)(1-x-x^2)].`
	CROSSREFS	`Sequence in context: A047175 A133632 A059182 this_sequence A064670 A119283 A057781` `Adjacent sequences: A027955 A027956 A027957 this_sequence A027959 A027960 A027961`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified July 4 18:25 EDT 2008. Contains 140886 sequences.

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