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A049751
Array T read by diagonals; T(i,j)=number of directions from (0,0) to lattice points in closed disk with radius (0,0)-to-(i,j).
0
0, 4, 4, 6, 6, 6, 10, 10, 10, 10, 18, 14, 10, 14, 18, 26, 22, 18, 18, 22, 26, 38, 30, 22, 22, 22, 30, 38, 46, 42, 34, 26, 26, 34, 42, 46, 62, 50, 42, 38, 34, 38, 42, 50, 62, 78, 70, 54, 46, 46, 46, 46, 54, 70, 78, 98, 82, 70, 58, 50, 50, 50, 58, 70, 82, 98
OFFSET
0,2
EXAMPLE
Diagonals (each starting on row 1): {0}; {4,4}; {6,6,6}; ...
CROSSREFS
Sequence in context: A274636 A198697 A111657 * A196594 A190303 A175123
KEYWORD
nonn,tabl
STATUS
approved