Matroid database

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32,400,859 matroids, showing 2,201–2,250

label ▼rank ⇅n ⇅#bases ⇅#automorphisms ⇅simple ⇅char set ⇅rs dim ⇅birational type ⇅
4.9.18801349906✓∅-1point over Q(a)/(a^2 - a + 1)
4.9.18801249901✓all2rational
4.9.18801149911✓{2}-1rational
4.9.18801049912✓all1rational
4.9.18800949922✓∅-1rational
4.9.18800849911✓all but 2,3,50rational
4.9.18800749921✓all2rational
4.9.18800649912✓all2rational
4.9.18800549912✓all3rational
4.9.18800449922✓all4rational
4.9.18800349911✓∅-1rational
4.9.18800249921✓all2rational
4.9.18800149921✓all2rational
4.9.18800049921✓all2rational
4.9.18799949931✓all1rational
4.9.18799849912✓all3rational
4.9.18799749922✓all2rational
4.9.18799649921✓∅-1rational
4.9.18799549931✓all3rational
4.9.18799449934✓all1rational
4.9.18799349934✓∅-1rational
4.9.18799249944✓all3rational
4.9.187991498712✓all2rational
4.9.187990499112✓all2rational
4.9.18798949926✓all3rational
4.9.18798849926✓all2rational
4.9.18798749936✓∅-1rational
4.9.18798649921✓all but 21rational
4.9.18798549921✓all but 21rational
4.9.18798449931✓∅-1rational
4.9.18798349922✓all2rational
4.9.18798249932✓∅-1rational
4.9.18798149932✓all0rational
4.9.18798049932✓all but 2,3,5,70rational
4.9.18797949932✓∅-1rational
4.9.18797849942✓∅-1rational
4.9.18797749934✓all2rational
4.9.18797649932✓all2rational
4.9.18797549944✓all3rational
4.9.18797449932✓all but 2,31rational
4.9.18797349932✓all3rational
4.9.18797249942✓all2rational
4.9.18797149944✓all3rational
4.9.18797049942✓all2rational
4.9.18796949944✓all but 21rational
4.9.18796849954✓all3rational
4.9.187967499072✓∅-1rational
4.9.187966499572✓all1rational
4.9.187965499524✓all1rational
4.9.187964499536✓all2rational

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