456300

Appears in sequences

• Number of nonseparable tree-rooted planar maps with n + 2 edges and 3 vertices.at n=23A006411
• a(n) = n*(n-1)^2*(n-2).at n=25A047928
• Unsigned member r=-12 of the family of Chebyshev sequences S_r(n) defined in A092184.at n=6A099270
• A modified Heron sequence starting from 1, 2.at n=12A134588
• Number of reduced words of length n in Coxeter group on 27 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.at n=4A162827
• Oblong numbers that are the product of two oblong numbers.at n=31A188660
• Numbers with prime factorization p^2*q^2*r^2*s^3 where p, q, r, and s are distinct primes.at n=8A190382
• Number of non-palindromic words (length n>0) over the alphabet of 26 letters.at n=3A251861
• a(n) = Product_{d|n, d<n} prime(A318881(d)), where A318881(d) records the prime signature of A000010(d).at n=47A319342
• Numbers having exactly four non-unitary prime factors.at n=21A338541
• Lower bounds for the maximum number of stable matchings in the stable marriage problem based on composing smaller instances.at n=17A357271