386320

Appears in sequences

• Number of n-step self-avoiding walks on hexagonal lattice from (0,0) to (1,3).at n=8A005552
• Refactorable numbers k such that 2*k + 1 is also a refactorable number.at n=6A281294
• a(n) is the number of 2n-celled fixed polyominoes with at least 180 degree rotational symmetry about the midpoint of a horizontal edge of a square in the lattice.at n=10A390654