70596

Appears in sequences

• 11-gonal (or hendecagonal) pyramidal numbers: a(n) = n*(n+1)*(3*n-2)/2.at n=36A007586
• a(n) = A123311(n)/(n+1), where A123311 forms the central terms of triangle A123305.at n=5A123312
• 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), (0, -1, 0), (0, 0, 1), (1, 1, 0)}.at n=9A150137