A390291 Number of "iterative" minimally rigid n X n adjacency matrices of sphere packings in R^3.

1, 1, 1, 1, 1, 3, 26, 437, 13823, 750258

Offset

1,6

Links

Table of n, a(n) for n=1..10.

Natalie Arkus, Vinothan N. Manoharan, and Michael P. Brenner, Deriving Finite Sphere Packings, SIAM J. Discrete Math., 25 (2011), 1860-1901; arXiv:1011.5412 [cond-mat.soft], 2010-2011. See Table 1.

Crossrefs

Cf. A006125, A000088, A173715, A390292.

Sequence in context: A251664 A182958 A174423 * A321183 A274778 A049088

Adjacent sequences: A390288 A390289 A390290 * A390292 A390293 A390294

Keyword

nonn,hard,more

Author

Andrei Zabolotskii, Oct 31 2025

Status

approved