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A010368 Number of points of L1 norm 2n in Hamming code version of E_8 lattice. 1
1, 16, 352, 3376, 19648, 82256, 273440, 767600, 1894784, 4228752, 8703712, 16763824, 30549568, 53125072, 88750496, 143203568, 224154368, 341597456, 508345440, 740588080, 1058521024, 1487048272 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..21.

P. Solé, Counting lattice points in pyramids, Discr. Math. 139 (1995), 381-392.

MAPLE

series(((1+x)^8+224*x^2*(1+x)^4+256*x^4)/(1-x)^8, x, 40);

CROSSREFS

Cf. A010369.

Sequence in context: A227102 A221577 A136269 * A053103 A223032 A171680

Adjacent sequences: A010365 A010366 A010367 * A010369 A010370 A010371

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Simon Plouffe

STATUS

approved

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Last modified November 27 22:56 EST 2022. Contains 358406 sequences. (Running on oeis4.)