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A244484
Number of equivalence classes of two-layer networks on n channels modulo permutations.
1
1, 2, 4, 8, 16, 20, 52, 61, 165, 152, 482, 414, 1378, 1024, 3780, 2627, 10187, 6422, 26796, 15906
OFFSET
1,2
LINKS
D. Bundala, M. Codish, L. Cruz-Filipe et al., Optimal-Depth Sorting Networks, arXiv preprint arXiv:1412.5302 [cs.DS], 2014.
M. Codish, L. Cruz-Filipe, P. Schneider-Kamp, The Quest for Optimal Sorting Networks: Efficient Generation of Two-Layer Prefixes, arXiv preprint arXiv:1404.0948 [cs.DS], 2014
CROSSREFS
Cf. A000085.
Sequence in context: A118021 A326312 A134162 * A350414 A045776 A102252
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jul 04 2014
EXTENSIONS
a(20) from Bundala (2014). - N. J. A. Sloane, Aug 29 2015
STATUS
approved