9999360

Appears in sequences

• Number of nonsingular n X n matrices over GF(2) (order of the group GL(n,2)); order of Chevalley group A_n (2); order of projective special linear group PSL_n(2).at n=5A002884
• Order of universal Chevalley group A_4(q), q = prime power.at n=0A003802
• Order of simple Chevalley group A_4(q), q = prime power.at n=0A003809
• Sum of divisors of superabundant numbers (A004394).at n=32A007626
• Maximum size of Aut(G) where G is a finite group of order n.at n=31A059773
• Maximal size of Aut(G) where G is a finite Abelian group of order n.at n=31A061350
• Product of all n - d, where d < n and d is a divisor of n.at n=31A072513
• Orders of non-Abelian simple groups of rank at least two.at n=29A119630
• Orders of non-Abelian simple groups of rank at least four.at n=11A119631
• Array read by rows: T(n,k) is the number of automorphisms of the k-th Abelian group of order n, where the ordering is such that the rows are nondecreasing.at n=54A138565
• List of orders of finite simple groups which are unit groups of rings.at n=10A239892
• Number m that give records for the quotient between the maximum and minimum x's such that sigma(x)=m.at n=25A241854
• Triangle read by rows: T(n,k) is the number of n X n matrices of rank k over F_2.at n=20A286331
• Triangle read by rows: T(n,k) is the number of surjective linear mappings from an n-dimensional vector space over F_2 onto a k-dimensional vector space, n>=0, 0<=k<=n.at n=20A288853
• Triangle read by rows. Number of invertible linear operators T on an n-dimensional vector space over GF(2) such that T(U) = U for some given k-dimensional subspace U.at n=15A302346
• Triangle read by rows. Number of invertible linear operators T on an n-dimensional vector space over GF(2) such that T(U) = U for some given k-dimensional subspace U.at n=20A302346
• Triangle read by rows: T(n,k) is the number of ordered direct sum decompositions of the vector space GF(2)^n containing exactly k subspaces.at n=20A303535
• Array read by antidiagonals: T(n,k) is the order of the group GL(n,Z_k).at n=26A316622
• Array read by antidiagonals: T(n,k) is the order of the group SL(n,Z_k).at n=26A316623
• a(n) = Product_{d|n} (d*sigma(d)) where sigma(k) = the sum of the divisors of k (A000203).at n=15A324980