58812

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, 0), (-1, -1, 1), (-1, 0, 1), (1, 0, 0), (1, 1, -1)}.at n=11A148194
• Number of vertices in the metrically regular triangulation of the n-th approximation of the Koch snowflake fractal.at n=5A277492
• a(n) is the number of Dyck paths of (2,3)-knight moves of size n.at n=30A285174
• Ordered product of the terms in a primitive Pythagorean quadruple (with repetitions).at n=36A367737
• G.f. A(x) satisfies -2*x = Product_{n>=1} (1 - x^n/A(x)) * (1 - x^(n-1)*A(x)) * (1 + x^n).at n=11A384272