cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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), ...

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%I A163899 #3 Mar 31 2012 13:21:18
%S A163899 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,
%T A163899 9,16,25,36,49,225,1,4,2,16,10,5,25,128,225,170,4,1,17,10,5,18,113,
%U A163899 162,196,170,125,9,16,25,5,10,128,113,149,225,170,125,90,16,9,4,1,128
%N 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), ...
%H A163899 A. Karttunen, <a href="/A163899/b163899.txt">Table of n, a(n) for n = 0..32895</a>
%e A163899 The top left 8x8 corner of this array:
%e A163899 +0 +0 +9 +9 +0 +1 +0 +0
%e A163899 +1 +1 +2 +2 +2 +1 +1 +1
%e A163899 +8 +5 +4 +5 +5 +4 +4 +4
%e A163899 18 +5 +2 +9 +9 +2 +1 +9
%e A163899 25 20 17 16 16 17 16 16
%e A163899 29 10 25 10 10 25 +9 25
%e A163899 36 36 +5 +5 +5 +4 36 36
%e A163899 49 25 18 10 +1 10 25 49
%Y A163899 a(n) = A163900(A163357(n)). Positions of zeros: A165403. See also A163898, A163904.
%K A163899 nonn,tabl
%O A163899 0,4
%A A163899 _Antti Karttunen_, Sep 19 2009