189000

Appears in sequences

• Triangle whose (n,k)-th entry is 15^(n-k)*binomial(n,k).at n=41A027467
• Leading least prime signatures: a(n) is in A025487 but a(n)/2 is not.at n=30A056153
• Leading least prime signatures, ordered by forming the product of primorials greater than 2 with multiplicities given by the canonical sequence of partitions.at n=38A062515
• Numerators of bivariate Taylor expansion of the incomplete elliptic integral of the second kind.at n=19A120362
• a(n) = if n mod 2 = 1 then (n^2-1)*n^3/4 else n^5/4.at n=15A122657
• 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=25A123516
• Numbers n that raised to the powers from 1 to k (with k>=1) are multiple of the sum of their digits (n raised to k+1 must not be a multiple). Case k=13.at n=19A135198
• a(n) = 4*(n^4-n^3).at n=14A160538
• Numbers with at least three 3s in their prime signature.at n=2A176359
• Numbers which are the area of exactly three Pythagorean triangles.at n=21A177021
• Irregular triangle T(n,k) = binomial(n-1,m-1)*m!*A036040(n,k), where m=A036043(n,k), read by rows, 1 <= k <= A000041(n).at n=41A181417
• Members of A025487 such that A025487(n) > A181822(n).at n=34A181827
• Expansion x^2*cotan(x)/(exp(x^2*cotan(x))-1) = Sum_{n>=0} a(n)*x^n/(n+1)!^2.at n=6A199541
• Numbers m such that, in the prime factorization of m, the product of the exponents equals the sum of prime factors and exponents.at n=23A231231
• a(n) = 7*n^3.at n=30A244727
• Number of compositions of n into exactly four different parts with distinct multiplicities.at n=2A246231
• Numbers n for which there exists k > n such that A000203(k) = A000203(n) and A007947(k) = A007947(n), where A000203 gives the sum of divisors, and A007947 gives the squarefree kernel of n.at n=36A255334
• Triangle: Newton expansion of C(n,m)^3, read by rows.at n=49A262704
• Intersection of A025487 and A026477.at n=21A275911
• Leading least prime signatures, ordered by the underlying partitions, as in A063008.at n=33A316532