151200
domain: N
Appears in sequences
- a(n) = n!/24.at n=6A001720
- Coefficients for numerical differentiation.at n=4A002702
- Triangle read by rows: the Bell transform of the triple factorial numbers A008544 without column 0.at n=22A004747
- Numbers k such that sigma(k) >= 4*k.at n=24A023198
- Theta series of 8-d 5-modular lattice Q_8(1) with det 625 and minimal norm 4.at n=24A028976
- a(n) = Product_{k=1..n} rad(k), where rad(n) is the product of distinct prime factors of n, cf. A007947.at n=10A048803
- A triangle of numbers related to triangle A030526.at n=21A049353
- A triangle of numbers related to triangle A030526.at n=32A049353
- Generalized Stirling number triangle of first kind.at n=21A049460
- (-1)-sigma super perfect numbers: (-1)sigma((-1)sigma(x))=2*x, where if x=Product p(i)^r(i) then (-1)sigma(x)=Product (-1+Sum p(i)^s(i), s(i)=1 to r(i)); (-1)sigma(1)=1.at n=5A051153
- E.g.f. [1-x -sqrt(1-2x-3x^2)]/(2x) - [1+x-sqrt(1-2x-3x^2)]/2 .at n=7A052731
- Product of 6 consecutive integers.at n=10A053625
- Decomposition of Stirling's S(n,2) based on associated numeric partitions.at n=24A058936
- Numbers with an increasing number of nonprime divisors.at n=36A059992
- Coefficient triangle of generalized Laguerre polynomials n!*L(n,4,x) (rising powers of x).at n=21A062140
- Numbers k such that sigma(k) > 4*k.at n=22A068404
- Triangle of falling factorials, read by rows: T(n, k) = n*(n-1)*...*(n-k+1), n > 0, 1 <= k <= n.at n=50A068424
- Reduced root factorial of n: product of the smallest integer root of numbers from 1 to n.at n=10A068625
- Triangle of coefficients of Bateman polynomial n!Z_n(-x).at n=23A073768
- Least common multiple of the first n terms of A002473 (7-smooth numbers).at n=22A085911