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A030241 Minimal determinant of any n-dimensional even lattice. 0
1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3, 4, 4, 4, 3, 2, 1, 2, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. xxvii.

LINKS

Table of n, a(n) for n=0..98.

CROSSREFS

Cf. A005102.

Sequence in context: A109870 A171502 A005102 * A062750 A193669 A065686

Adjacent sequences:  A030238 A030239 A030240 * A030242 A030243 A030244

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 17 19:44 EDT 2019. Contains 328128 sequences. (Running on oeis4.)