259200

Appears in sequences

• Denominator of 2*Stirling_2(n,2)/n!.at n=8A002679
• Denominators of coefficients for repeated integration.at n=3A002684
• Highly powerful numbers: numbers with record value of the product of the exponents in prime factorization (A005361).at n=29A005934
• Lexicographically earliest infinite sequence of distinct positive numbers with the property that when written as a triangle, the product of each row is a factorial.at n=14A077168
• Final terms of rows of A077168.at n=4A077170
• Triangle of generalized Stirling numbers S_{3,2}(n,k) read by rows (n>=1, 2<=k<=2n).at n=17A078740
• Numbers with incrementally smallest ratio A002034(n)/n.at n=59A094371
• Euler's totient of A104350(n).at n=11A104354
• Sigma(A033631(n)) {sigma is the sum of divisors function A000203}.at n=32A115619
• a(n) = (n!)^2/2.at n=4A123385
• Triangle read by rows: T(n,k) = (-1)^k * n! * 2^(n-2*k) * binomial(n,k) * binomial(2*k,k) (0<=k<=n).at n=23A123516
• Smallest number m having exactly n divisors d with sqrt(m/2) <= d < sqrt(2*m).at n=13A128605
• Exponential Riordan array [1+x*arctanh(x), x].at n=57A166357
• a(n) is the smallest number k such that n*k has twice as many divisors as k.at n=58A167401
• Irregular triangle T(n,k) = A096162(n,k) * A036040(n,k) * A048996(n,k) * A098546(n,k) * A178886(n,k), read by rows, 1 <= k <= A000041(n).at n=24A179236
• a(n) is the smallest integer that, when divided by any divisor of A025487(n), yields a member of A025487.at n=48A181817
• Number of (n+1)X(n+1) symmetric binary matrices without the pattern 1 1 antidiagonally.at n=5A190340
• Denominator of the third row of the inverse Akiyama-Tanigawa algorithm from 1/n.at n=6A194506
• Composite numbers such that product_{i=1..k} (p_i/(p_i-1)) / sum_{i=1..k} (p_i/(p_i-1)) is an integer, where p_i are the k prime factors of n (with multiplicity).at n=22A227034
• Denominators of minimum possible graph likelihood for a graph on n nodes.at n=5A234235