74510

Appears in sequences

• Number of identity matched trees with n nodes.at n=11A005755
• Numbers k such that k and k^2 have the same set of digits.at n=29A029793
• Numbers k such that k and k^2 use only the digits 0, 1, 4, 5 and 7.at n=15A136856
• Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 3,1 3,2 4,1 5,1 6,1 polyhexes in any orientation on a planar nXnXn triangular grid.at n=8A155376