A008368 - OEIS

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A008368

Number of orbits on points that are at n steps from 0 in f.c.c. lattice.

1, 1, 3, 4, 7, 8, 13, 14, 20, 22, 29, 31, 40 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	LINKS	`J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices VII: Coordination Sequences, Proc. Royal Soc. London, A453 (1997), 2369-2389 (Abstract, pdf, ps).` `Index entries for sequences related to f.c.c. lattice`
	FORMULA	`G.f.: (1-x^5)/((1-x)(1-x^2)^2(1-x^3)) [ conjecture of Simon Plouffe ].`
	CROSSREFS	`Sequence in context: A025032 A003141 A157419 * A023054 A060023 A120355` `Adjacent sequences: A008365 A008366 A008367 * A008369 A008370 A008371`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com) and J. H. Conway (conway(AT)math.princeton.edu)`

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Last modified February 14 23:16 EST 2012. Contains 205687 sequences.