273438

Appears in sequences

• Number of n-node graphs containing a 4-cycle.at n=9A039751
• 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, 0, 0), (-1, 0, 1), (0, -1, 1), (0, 0, 1), (1, 1, -1)}.at n=11A148486
• Dispersion of A016873, (5k+3), by antidiagonals.at n=47A191705
• (7*5^n+1)/2.at n=7A199309