255510

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, 0), (0, 0, -1), (0, 1, 1), (1, -1, 0)}.at n=11A148816
• Number of (n+1)X(n+1) -10..10 symmetric matrices with every 2X2 subblock having sum zero and two, three or four distinct values.at n=3A211820
• Concatenate n-th composite integer with concatenation of its prime factors in ascending order and the sum of its prime factors.at n=14A245316