A128809 - OEIS

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A128809

Coefficients of the invariant of degree 30 associated with the icosahedral grooup.

1, 522, -10005, -10005, -522, 1 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	REFERENCES	`A. Erdelyi, Higher Transcendental Functions, McGraw-Hill, 1955, Vol. 3, p. 11.` `F. Klein, Lectures on the Icosahedron ..., 2nd Rev. Ed., 1913; reprinted by Dover, NY, 1956; see p. 61.` `S. Mukai, An Introduction to Invariants and Moduli, Cambridge, 2003; see p. 19.`
	EXAMPLE	`J = (x^30+y^30) + 522(x^25y^5-x^5y^25) - 10005(x^20y^10+x^10y^20).`
	CROSSREFS	`Cf. A128808. The third invariant (which does not have its own entry) is f = xy(x^10+11x^5y^5-y^10).` `Sequence in context: A138647 A045050 A004968 * A145497 A142778 A152673` `Adjacent sequences: A128806 A128807 A128808 * A128810 A128811 A128812`
	KEYWORD	`sign,fini,full`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Apr 10 2007`

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Last modified February 15 10:28 EST 2012. Contains 205763 sequences.