A035834 - OEIS

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A035834

Coordination sequence for lattice D*_98 (with edges defined by l_1 norm = 1).

1, 196, 19208, 1254988, 61504016, 2411710420, 78823543064, 2208781856092, 54174273131552, 1181513222975204, 23200998588819240, 414366303855940716, 6787317128471047728, 102682475886364669428, 1443372362804937698616 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	LINKS	`Table of n, a(n) for n=0..14.` `Joan Serra-Sagrista, Enumeration of lattice points in l_1 norm, Inf. Proc. Lett. 76 (1-2) (2000) 39-44.`
	FORMULA	`a(m)=add(2^kbinomial(n, k)binomial(m-1, k-1), k=0..n)+2^nbinomial((n+2m)/2-1, n-1); with n=98.`
	CROSSREFS	`Sequence in context: A203540 A006362 A363176 * A114761 A076002 A145020` `Adjacent sequences: A035831 A035832 A035833 * A035835 A035836 A035837`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane, J. Serra-Sagrista (jserra(AT)ccd.uab.es)`
	STATUS	`approved`

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Last modified December 9 06:02 EST 2023. Contains 367685 sequences. (Running on oeis4.)