40503

Appears in sequences

• Number of paths of length n-1 a king can take from one side of an n X n chessboard to the opposite side.at n=8A081113
• Number of base 9 n-digit numbers with adjacent digits differing by one or less.at n=9A126363
• Greatest integer k such that k/2^n < 1/phi, where phi = (1+sqrt(5))/2 = golden ratio.at n=16A293322
• The integer k that minimizes |k/2^n - 1/phi|, where phi = (1+sqrt(5))/2 = golden ratio.at n=16A293324
• Triangle I(m,n) read by rows: number of perfect lattice paths on the m*n board.at n=44A296449
• On a spirally numbered square grid, with labels starting at 1, this is the number of steps that an (n,n+1) leaper makes before getting trapped, or -1 if it never gets trapped.at n=20A343178