39754

Appears in sequences

• Number of rooted planar maps with 4 faces and n vertices and no isthmuses.at n=10A006468
• Thickened cube numbers: a(n) = n*(n^2 + (n-1)^2) + (n-1)*2*n*(n-1).at n=21A050492
• Numbers n such that n | 11^n + 9^n + 7^n + 5^n + 3^n + 1.at n=30A057832
• Sixth column (m=5) of triangle A060098.at n=11A060101
• Largest squarefree number dividing sum of cubes of divisors of n.at n=42A080238
• Numbers k such that (phi(k-2) + phi(k+2))/2 = phi(k); 2-phi/balanced numbers.at n=28A099633
• Least k such that prime(n)^3 divides binomial(2k,k).at n=13A110496
• Number of zero-one matrices with n ones and no zero rows or columns, up to permutation of rows.at n=8A116540
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (-1, 1, -1), (1, 0, 1), (1, 1, 0)}.at n=8A150693
• The number of orbits of 4-tuples of the dihedral group of order 2n acting on {1,2,...,n}.at n=42A236332
• Number of partitions of n^3 into at most two parts.at n=43A274324
• Determinant of circulant matrix of order 3 with entries in the first row (-1)^j * Sum_{k>=0} binomial(n,3*k+j), j=0,1,2.at n=6A290285
• Numerator of sigma_3(n)/sigma_2(n).at n=42A298754
• a(n) = prime(n)*(prime(n-1) + prime(n+1)).at n=32A357679