A047805 - OEIS

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A047805

Theta series of Niemeier lattice of type E_6^4.

1, 288, 189648, 16845696, 397610064, 4630772160, 34415914176, 187485113088, 814904105040, 2975518758816, 9486517914720, 27053099888256, 70486130167488, 169930928938176, 384163702086528 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`This series is the q-expansion of 3/4 E_4(z)^3 + 1/4 E_6(z)^2. Cf. A004009, A013973.`
	CROSSREFS	`Equal to theta series of A_11 D_7 E_6, cf. A008695` `Sequence in context: A037946 A159299 A008695 * A173150 A107739 A188367` `Adjacent sequences: A047802 A047803 A047804 * A047806 A047807 A047808`
	KEYWORD	`nonn,easy,more`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms and formula in terms of Eisenstein series from Daniel D. Briggs (briggs(AT)math.umass.edu), Nov 25 2011`

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Last modified February 17 17:51 EST 2012. Contains 206061 sequences.