414720
domain: N
Appears in sequences
- Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*12^j.at n=19A038242
- Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*9^j.at n=17A038287
- Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*8^j.at n=18A038298
- Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*4^j.at n=16A038330
- Number of orderings of the subsets of a set with n elements that are compatible with the subsets' sizes; i.e., if A, B are two subsets with A <= B then Card(A) <= Card(B).at n=4A051459
- Least number whose number of divisors is A007304(n) (the n-th number that is the product of 3 distinct primes).at n=7A061299
- Multi-level primorials: triangle with a(n,k)=a(n-1,k-1)*a(n-1,k) but with a(n,1)=p(n) and a(n,n)=2.at n=25A066119
- Product of nonzero digits of A066551(n).at n=16A066583
- 15-almost primes (generalization of semiprimes).at n=27A069276
- Greatest common divisors of rows of triangle A075181 and of (unsigned) triangle A048594.at n=24A075182
- Greatest common divisors of rows of triangle A075181 and of (unsigned) triangle A048594.at n=25A075182
- (1/2)*A075998.at n=13A076001
- Value of Vandermonde determinant for the first n prime numbers: V[prime(1), ..., prime(n)].at n=5A080358
- Product of all composite numbers from 1 to the n-th nonprime number divided by product of all the prime divisors of each of those composite numbers which exceed the previously stated value.at n=10A084744
- (Product of all composite numbers from 1 to n)/ ( product of the prime divisors of all composite numbers up to n). More precisely, denominator = product of the largest squarefree divisors of composite numbers up to n.at n=26A085056
- Denominators of rational coefficients in a series expansion of z! = Gamma(z+1), convergent for Re(z) >= 0, given as equation (21) in the referenced paper by Lanczos.at n=2A090675
- a(n) = A092143(n)/n!.at n=11A092144
- a(n) = A092143(n)/n!.at n=12A092144
- a(n) = Product_{j=1..n} Product_{k=1..n} gcd(j,k).at n=6A092287
- Hook products of all partitions of 13.at n=7A093792