A008694 - OEIS

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A008694

Theta series of Niemeier lattice of type A_12^2.

1, 312, 189072, 16851744, 397574736, 4630888080, 34415769024, 187484711232, 814906132560, 2975516031384, 9486515132640, 27053112718944, 70486121264832, 169930915072464, 384163711731072 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	REFERENCES	`J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 407.`
	FORMULA	`This series is the q-expansion of 55/72 E_4(z)^3 + 17/72 E_6(z)^2. Cf. A004009, A013973. - Daniel D. Briggs, Nov 25 2011`
	CROSSREFS	`Sequence in context: A015704 A156406 A112729 * A083972 A045275 A097023` `Adjacent sequences: A008691 A008692 A008693 * A008695 A008696 A008697`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.