id:A084184 - OEIS Search Results

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Partial sums of a Jacobsthal related sequence.

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0, 1, 2, 7, 10, 31, 42, 127, 170, 511, 682, 2047, 2730, 8191, 10922, 32767, 43690, 131071, 174762, 524287, 699050, 2097151, 2796202, 8388607, 11184810, 33554431, 44739242, 134217727, 178956970, 536870911, 715827882, 2147483647, 2863311530 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`a(2n+1)=A083420(n). a(2n)=2A002450(n)=2A001045(2n). Partial sums of A084183.`
	FORMULA	`G.f.: x(1+2x+2x^2)((1-x^2)(1-4x^2)).`
	CROSSREFS	`Sequence in context: A066967 A032007 A091295 this_sequence A015963 A056656 A151346` `Adjacent sequences: A084181 A084182 A084183 this_sequence A084185 A084186 A084187`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 19 2003`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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