2822400

Appears in sequences

• a(n) = n! * binomial(n,4).at n=4A001806
• Denominator of (binomial(2*n-2,n-1)/n!)^2.at n=7A005017
• Squares of even octagonal numbers.at n=12A014794
• Triangle of coefficients in expansion of x^n in terms of Laguerre polynomials L_n(x).at n=40A021012
• Squares whose digits are all even.at n=31A030098
• Sets record for f(n) = |{(a,b):a*b=n and a|b}|. Also squares of highly composite numbers A002182.at n=16A046952
• E.g.f. (1-2x)/(1-2x-x^2+x^3).at n=8A052613
• a(n) = A056623(n!).at n=13A056628
• Triangle T(s,t), s >= 1, 1 <= t <= s (see formula line).at n=44A059836
• Diagonal T(s,s) of triangle A059836.at n=8A059837
• Smallest number with exactly A025475(n) divisors.at n=15A065743
• Smallest square divisible by n!.at n=8A065886
• a(1) = 1, a(n+1) is the smallest square greater than the n-th partial sum.at n=20A076967
• Row 4 of array in A288580.at n=14A092398
• a(n) = A062401(2^n-1).at n=22A096853
• Minimal numbers having in canonical prime factorization at least one factor p^e such that e+1 is not prime, p prime and e>0.at n=22A099317
• Expansion of e.g.f.: sqrt(1+2x)/sqrt(1-2x).at n=8A110491
• Bishops on an n X n board (see Robinson paper for details).at n=4A122747
• Terms in A005179 where prime signature differs from that of corresponding term in A038547.at n=17A122813
• Smallest number m having exactly n divisors d with sqrt(m/2) <= d < sqrt(2*m).at n=23A128605