A145168 - OEIS

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A145168

G.f. A(x) satisfies A(x/A(x)^3) = 1/(1-x)^2.

1, 2, 15, 226, 4959, 136338, 4361818, 155947386, 6080986701, 254568183028, 11318103523886, 530301559146450, 26035289254487166, 1333502730683975402, 71012366873757289557, 3921010145962481940986, 223985973308662486807733 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`Self-convolution square of A145167.` `Self-convolution cube yields A145170.`
	PROG	`(PARI) {a(n)=local(A=1+x+x*O(x^n), B); for(n=0, n, B=serreverse(x/A^3); A=1/(1-B)^2); polcoeff(A, n)}`
	CROSSREFS	`Cf. A145167, A145169, A145170 (A^3).` `Sequence in context: A099085 A078365 A176337 * A184357 A090301 A197236` `Adjacent sequences: A145165 A145166 A145167 * A145169 A145170 A145171`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Oct 03 2008`

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Last modified February 15 12:59 EST 2012. Contains 205788 sequences.