130680

Appears in sequences

• 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, 1), (-1, 0, 1), (-1, 1, -1), (0, -1, 1), (1, 0, 0)}.at n=13A148033
• Numbers with prime factorization pq^2r^3s^3.at n=13A190320
• a(n) = 6*n^2*(2*n + 1).at n=22A190705
• Number of n X 4 0..4 arrays with no element equal to another at a city block distance of exactly two, and new values 0..4 introduced in row major order.at n=3A222942
• T(n,k) = Number of n X k 0..4 arrays with no element equal to another at a city block distance of exactly two, and new values 0..4 introduced in row major order.at n=24A222944
• Triangle read by rows, expansion of exp(x*z)*z*((exp(z) + 1)/((exp(z) + 2*exp(-z/2)*cos(z*sqrt(3)/2))/3) -1), for n >= 1 and 0 <= k <= n-1.at n=58A294034
• Triangle read by rows: T(n, m) = (n+1-m)*C(2*n+2-m, m)*C(3*n-3*m+2, n-m+1)/(2*n-m+2).at n=41A360546
• Areas of nondegenerate triangles with perimeter A385737(n) whose side lengths are triangular numbers.at n=13A385872
• Areas of nondegenerate triangles with perimeter A385737(n) whose side lengths are triangular numbers.at n=16A385872