518400
domain: N
Appears in sequences
- a(n) = (n!)^2.at n=6A001044
- Order of universal Chevalley group D_n (9).at n=1A003836
- Order of universal Chevalley group D_2(q), q = prime power.at n=6A003841
- Highly powerful numbers: numbers with record value of the product of the exponents in prime factorization (A005361).at n=32A005934
- Triangle of central factorial numbers |t(2n,2n-2k)| read by rows.at n=27A008955
- Multiply successively by 1,1,2,2,3,3,4,4,..., n >= 1, a(0) = 1.at n=12A010551
- Number of permutations of an n-set containing a 7-cycle.at n=10A029574
- Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*12^j.at n=19A038254
- Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*5^j.at n=16A038331
- Sets record for f(n) = |{(a,b):a*b=n and a|b}|. Also squares of highly composite numbers A002182.at n=13A046952
- E.g.f.: x^3*log(1/(1-x)).at n=10A052759
- Largest square dividing n!.at n=9A055071
- Largest square dividing n!.at n=10A055071
- a(n) = A056623(n!).at n=10A056628
- a(n) = A056623(n!).at n=9A056628
- Products of distinct factorials.at n=32A058295
- Triangle n!/(n-k), 1 <= k < n, read by rows.at n=38A058298
- Card-matching numbers (Dinner-Diner matching numbers).at n=36A059065
- Triangle of generalized Stirling numbers.at n=20A061692
- Number of permutations of degree n with greatest sum of distances.at n=12A062870