Matroid database

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32,400,859 matroids, showing 7,151–7,200

label ▼rank ⇅n ⇅#bases ⇅#automorphisms ⇅simple ⇅char set ⇅rs dim ⇅birational type ⇅
4.9.18306349992✓all2rational
4.9.183062491011✓∅-1rational
4.9.183061491022✓all0rational
4.9.18306049948✓all5rational
4.9.18305949991✓all1rational
4.9.183058491002✓all but 21rational
4.9.18305749984✓∅-1empty
4.9.183056491014✓∅-1rational
4.9.18305549992✓all but 2,32rational
4.9.183054491011✓all1rational
4.9.183053491022✓all but 21rational
4.9.18305249964✓all but 22rational
4.9.183051491004✓all2rational
4.9.183050491021✓∅-1rational
4.9.183049491034✓all2rational
4.9.183048499524✓all3rational
4.9.18304749942✓all2rational
4.9.18304649996✓all1rational
4.9.18304549968✓∅-1rational
4.9.18304449974✓all2empty
4.9.18304349988✓all3rational
4.9.18304249984✓all but 22rational
4.9.18304149998✓all but 22rational
4.9.183040491004✓all2empty
4.9.183039491018✓all1rational
4.9.18303849972✓all3empty
4.9.18303749981✓all2rational
4.9.18303649992✓all but 20rational
4.9.18303549981✓all but 21rational
4.9.18303449991✓all6rational
4.9.183033491001✓all1rational
4.9.183032491011✓all but 21rational
4.9.183031491002✓all3empty
4.9.183030491011✓all6rational
4.9.183029491022✓all but 2,30rational
4.9.183028499412✓all but 22rational
4.9.18302749984✓all but 21rational
4.9.18302649992✓all7rational
4.9.183025491004✓all but 23rational
4.9.183024491014✓all but 21rational
4.9.183023491006✓∅-1rational over Q(a)/(a^2 - a + 1)
4.9.183022491012✓∅-1rational
4.9.183021491022✓all3rational
4.9.1830204910312✓all1rational
4.9.18301949954✓all2rational
4.9.18301849994✓all1rational
4.9.1830174910012✓all3rational
4.9.18301649984✓all3rational
4.9.18301549992✓all5rational
4.9.18301449994✓all4rational

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