A083353 - OEIS

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A083353

Coefficients of power series A(x) consist entirely of squares, where A(x) = A083352(x)^2 + A083352(x) - 1.

1, 9, 36, 81, 144, 225, 324, 576, 1089, 1296, 1764, 2916, 4356, 6084, 7569, 9801, 16641, 20736, 25281, 32400, 39204, 53361, 69696, 76176, 90000, 110889, 149769, 176400, 184041, 207936, 281961, 338724, 363609 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`After the first term, all terms seem to be a multiple of 9.`
	EXAMPLE	`A083352(x)=1 + 3x + 9x^2 + 9x^3 + 3x^4 + 15x^5 + 33x^6 +...; so that A(x) =` `A083352(x)^2 + A083352(x) - 1 = 1 + 9x + 36x^2 + 81x^3 + 144x^4 + 225x^5 +...`
	CROSSREFS	`Cf. A083352, A083354 (square-root of terms).` `Sequence in context: A077115 A073946 A016766 * A083014 A202287 A001487` `Adjacent sequences: A083350 A083351 A083352 * A083354 A083355 A083356`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Apr 26 2003`

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Last modified February 14 20:13 EST 2012. Contains 205663 sequences.