Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #4 Sep 16 2022 13:22:52
%S 1,5,2,8,69,7,19,209,1023,22,15,440,16744,1205,495,71,2639,128617,
%T 4282081,1169441,2494,112,11067,21728,59292739,3498175408,
%U 287916805961,360161,265,4142,5317209,579080689,43600867640,9153575734849,273893674761,153254
%N T(n,m) is the denominator of the resistance between two diametrically opposite nodes of a rectangular electric network of n*m quadratic meshes in which all edges are replaced by one-ohm resistors, where T(n,m) is a triangle read by rows.
%e The triangle begins:
%e 1;
%e 7/5, 3/2;
%e 15/8, 121/69, 13/7;
%e 45/19, 430/209, 2089/1023, 47/22;
%e 43/15, 1047/440, 37873/16744, 2749/1205, 1171/495
%Y A357113 are the corresponding numerators.
%K nonn,frac,tabl
%O 1,2
%A _Hugo Pfoertner_, Sep 15 2022