A163899 Array A(i,j) giving the square of distance from (i,j) to the location where A163357(i,j) is situated in array A054238(i,j), listed antidiagonally as A(0,0), A(0,1), A(1,0), A(0,2), A(1,1), A(2,0), ...

0, 0, 1, 9, 1, 8, 9, 2, 5, 18, 0, 2, 4, 5, 25, 1, 2, 5, 2, 20, 29, 0, 1, 5, 9, 17, 10, 36, 0, 1, 4, 9, 16, 25, 36, 49, 225, 1, 4, 2, 16, 10, 5, 25, 128, 225, 170, 4, 1, 17, 10, 5, 18, 113, 162, 196, 170, 125, 9, 16, 25, 5, 10, 128, 113, 149, 225, 170, 125, 90, 16, 9, 4, 1, 128

Offset

0,4

Links

A. Karttunen, Table of n, a(n) for n = 0..32895

Example

The top left 8x8 corner of this array:
+0 +0 +9 +9 +0 +1 +0 +0
+1 +1 +2 +2 +2 +1 +1 +1
+8 +5 +4 +5 +5 +4 +4 +4
18 +5 +2 +9 +9 +2 +1 +9
25 20 17 16 16 17 16 16
29 10 25 10 10 25 +9 25
36 36 +5 +5 +5 +4 36 36
49 25 18 10 +1 10 25 49

Crossrefs

a(n) = A163900(A163357(n)). Positions of zeros: A165403. See also A163898, A163904.

Sequence in context: A238168 A340551 A299622 * A198758 A075700 A021843

Adjacent sequences: A163896 A163897 A163898 * A163900 A163901 A163902

Keyword

nonn,tabl

Author

Antti Karttunen, Sep 19 2009

Status

approved