A047807 - OEIS

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A047807

Theta series of Niemeier lattice of type A_5^4*D_4.

1, 144, 193104, 16809408, 397822032, 4630076640, 34416785088, 187487524224, 814891939920, 2975535123408, 9486534607200, 27053022904128, 70486183583424, 169931012132448, 384163644219264, 820166796086400 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	LINKS	`Table of n, a(n) for n=0..15.`
	FORMULA	`This series is the q-expansion of 2/3 E_4(z)^3 + 1/3 E_6(z)^2. Cf. A004009, A013973. - Daniel D. Briggs, Nov 25 2011`
	CROSSREFS	`Equal to the theta series of D_4^6, A008700.` `Sequence in context: A159724 A221124 A008700 * A023112 A159424 A013751` `Adjacent sequences: A047804 A047805 A047806 * A047808 A047809 A047810`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane.`
	EXTENSIONS	`More terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Jul 05 2000`
	STATUS	`approved`

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Last modified June 19 11:03 EDT 2013. Contains 226404 sequences.