A183045 Triangular array, T(i,j)=number of knight's moves to points on vertical segments (n,-n), (n,-n+1), ... (n,n) on infinite chessboard.

0, 2, 3, 2, 4, 1, 2, 1, 4, 2, 3, 2, 3, 2, 3, 2, 4, 3, 2, 3, 2, 3, 2, 3, 4, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 4, 5, 4, 3, 4, 3, 4, 3, 4, 3, 4, 5, 4, 6, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 6, 6, 5, 6, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 6, 5, 6, 6, 7, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5

Offset: 1

Author

Clark Kimberling, Dec 20 2010

Keywords

• nonn
• tabf

Examples

			First five rows:
0
2 3 2
4 1 2 1 4
2 3 2 3 2 3 2
4 3 2 3 2 3 2 3 4
		

Crossrefs

Cf. A065775, A183043.

Formula

See A065775.