264562

Appears in sequences

• a(n) = n + (n+1)^2 + (n+2)^3 + (n+3)^4 + (n+4)^5.at n=8A027622
• Number of planar n X n X n binary triangular grids symmetric both under 120 degree rotation and reflection with no more than 4 ones in any 5 X 5 X 5 subtriangle.at n=18A153937