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 A096601 #8 Aug 10 2020 11:12:10 %S A096601 1,1,1,1,1,2,2,1,1,1,1,3,4,3,2,1,1,2,4,7,7,5,3,1,1,1,1,3,6,11,14,12,8, %T A096601 4,2,1,1,2,4,9,17,25,26,20,12,6,3,1,1,1,1,3,6,13,26,42,51,46,32,18,9, %U A096601 4,2,1,1,2,4,9,19,39,68,93,97,78,50,27,13,6,3,1,1 %N A096601 Triangle (read by rows) where the number of row entries increases by steps of 2 and the entries are stacked in a rectangular fashion. The end entries are set to 1. Rest of entries are set to the sum of the entry directly above in the previous row plus the entry (if present) in the previous row that is either to the left (if the current row number is even) or to the right (if odd). %C A096601 The row sums are 2^n-1 (A000225). Shares many entries with A027926., e.g. the 'central column' (and greatest numbers in the rows) is A027988 (Greatest number in row n of array T given by A027926.) %e A096601 ........................1........................ %e A096601 .....................1..1..1..................... %e A096601 ..................1..2..2..1..1.................. %e A096601 ...............1..1..3..4..3..2..1............... %e A096601 ............1..2..4..7..7..5..3..1..1............ %e A096601 .........1..1..3..6.11.14.12..8..4..2..1......... %e A096601 ......1..2..4..9.17.25.26.20.12..6..3..1..1...... %e A096601 ...1..1..3..6.13.26.42.51.46.32.18..9..4..2..1... %e A096601 1..2..4..9.19.39.68.93.97.78.50.27.13..6..3..1..1 %Y A096601 Cf. A000225, A027926, A027988. %K A096601 nonn,tabf %O A096601 1,6 %A A096601 _Gerald McGarvey_, Aug 14 2004