23504

Appears in sequences

• Floor( Pi * (3/2)^n ).at n=22A047625
• Rhombi (in 3 different orientations) in a rhombus with 60-degree acute angles.at n=38A052153
• 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, 1, 0), (1, -1, 1), (1, 0, -1), (1, 0, 1)}.at n=9A148886
• Number of (w,x,y) with all terms in {0,...,n} and the numbers w,x,y,|w-x|,|x-y| distinct.at n=31A213490
• a(n) = 4*n*(n^2 + 2)/3.at n=26A217873
• Number of (2n-1)-step self-avoiding paths between two adjacent sites of a 2-dimensional square lattice.at n=7A225877
• Number of triangles in a Star of David of size n.at n=13A299965
• Sum of the even parts in the partitions of n into 7 parts.at n=35A309626
• Expansion of e.g.f. 1/(1 + log(1 - x)*exp(-x)).at n=8A351502
• G.f. satisfies A(x) = 1 + x * A(x)^3 * (1 + A(x)^(1/2))^2.at n=4A371678