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

1,2

Links

Table of n, a(n) for n=1..93.

Formula

See A065775.

Example

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.

Sequence in context: A286013 A208083 A181515 * A060847 A079528 A143422

Adjacent sequences: A183042 A183043 A183044 * A183046 A183047 A183048

Keyword

nonn,tabf

Author

Clark Kimberling, Dec 20 2010

Status

approved