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.
%I A161162 #2 Mar 31 2012 13:23:39 %S A161162 1,0,1,0,2,0,3,1,4,2,2,5,3,4,6,3,4,1,6,7,6,5,6,8,8,2,9,6,2,11,10,9,9, %T A161162 12,7,7,16,12,10,4,16,15,8,3,18,21,14,11,1,12,23,18,9,12,29,26,16,12, %U A161162 8,27,30,21,10,6,26,40,31,18,13,2,23,42,37,24,11,2,21,48,51,36,20,14,15,44 %N A161162 An irregular array distributing the values of A053445 having powers of two as column sums. (cf. A011782). %C A161162 Diagonals match the reverse of the rows in sequence A083480. %C A161162 Contribution from _Alford Arnold_, Jun 09 2009: (Start) %C A161162 Sequence A161162 is also closely related to sequence A161161 as illustrated. %C A161162 consider the two vectors in A161161 summing to 32 and 16 respectively: %C A161162 1 1 2 3 5 7 5 4 3 1 %C A161162 1 1 2 3 5 2 2 %C A161162 they differ by %C A161162 0 0 0 0 0 5 3 4 3 1 which is the vector in A161162 summing to 16. %C A161162 (End) %e A161162 Column six is 5 3 4 3 1 and sums to 16. %e A161162 The Tabf begins 1 %e A161162 .0 %e A161162 .1 %e A161162 ..0 %e A161162 ..2 %e A161162 ...0 %e A161162 ...3 %e A161162 ...1 %e A161162 ....4 %e A161162 ....2 %e A161162 ....2.5 %Y A161162 A161161 [From _Alford Arnold_, Jun 09 2009] %K A161162 nonn,tabf,uned %O A161162 1,5 %A A161162 _Alford Arnold_, Jun 08 2009