Matroid database

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2,017,782 matroids, showing 1,751–1,800

label ▲rank ⇅n ⇅#bases ⇅#automorphisms ⇅simple ⇅char set ⇅rs dim ⇅birational type ⇅
3.11.974043111501✓all but 50rational over Q(a)/(a^2 - a + 1)
3.11.974793111521✓all but 20rational
3.11.974853111511✓all0rational
3.11.974873111502✓all but 50rational
3.11.974883111502✓all but 2,3,50rational
3.11.974943111491✓all0rational
3.11.975103111521✓all but 2,3,50rational
3.11.975153111511✓all but 20rational
3.11.975203111511✓all0rational
3.11.978103111522✓all but 20rational
3.11.978123111514✓all but 20rational
3.11.978143111511✓all but 20rational
3.11.978203111512✓all but 2,30rational
3.11.978223111511✓all but 20rational
3.11.978373111511✓all but 20rational
3.11.978393111511✓all but 2,3,5,70rational
3.11.978453111511✓all but 2,50rational
3.11.978593111501✓all but 20rational
3.11.979123111504✓all but 20empty
3.11.979183111502✓all but 20empty
3.11.979403111481✓all but 2,70empty
3.11.979423111491✓all but 20empty
3.11.979463111481✓all but 2,50empty
3.11.9796431115296✓all but 20rational
3.11.982743111554✓all0rational
3.11.982793111542✓all0rational
3.11.982873111542✓all but 2,50rational
3.11.982963111524✓all but 2,30rational
3.11.982983111521✓all but 2,30rational
3.11.983033111564✓all but 2,30rational
3.11.983073111562✓all0rational
3.11.983373111542✓all but 2,30rational
3.11.983393111542✓all but 2,30rational
3.11.984043111522✓all but 20rational
3.11.1028283111531✓all but 20rational
3.11.1028303111521✓all but 2,30rational
3.11.1039483111511✓all but 20rational
3.11.1039493111501✓all but 2,30rational
3.11.1039513111511✓all but 20rational
3.11.1039523111501✓all but 20rational
3.11.1039573111501✓all but 2,50rational
3.11.1039643111522✓all but 20empty
3.11.1039653111511✓all but 2,30empty
3.11.1040593111501✓all0rational
3.11.1040603111532✓all but 2,50rational
3.11.1040613111522✓all but 2,3,70rational
3.11.1040633111521✓all but 2,50rational
3.11.1040643111522✓all0rational
3.11.1040723111531✓all but 20rational
3.11.1040733111531✓all but 2,3,5,70rational

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