0,2

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.

J = (x^30+y^30) + 522*(x^25*y^5-x^5*y^25) - 10005*(x^20*y^10+x^10*y^20).

Cf. A128808. The third invariant (which does not have its own entry) is f = x*y*(x^10+11*x^5*y^5-y^10).

Sequence in context: A138647 A045050 A004968 this_sequence A145497 A142778 A152673

Adjacent sequences: A128806 A128807 A128808 this_sequence A128810 A128811 A128812

sign,fini,full

N. J. A. Sloane (njas(AT)research.att.com), Apr 10 2007