%I #16 Jun 15 2017 13:18:44
%S 1,0,1,3,-1,2,1,3,4,-2,2,0,2,2,4,6,-3,3,0,3,3,6,8,-4,4,0,4,4,8,12,-7,
%T 5,-2,3,1,4,5,9,17,-10,7,-3,4,1,5,6,11,9,-5,4,-1,3,2,5,7,12,14,-8,6,
%U -2,4,2,6,8,14,19,-11,8,-3,5,2,7,9,16,11,-6,5,-1,4,3,7,10,17,16,-9,7,-2,5,3,8,11,19,21,-12,9,-3,6,3,9,12,21,33
%N The "Empire State Building" array read by rows.
%D Conway, John; Ryba, Alex; The extra Fibonacci series and the Empire State Building. Math. Intelligencer 38 (2016), no. 1, 41-48.
%H Conway, John; Ryba, Alex;, <a href="/A287872/a287872.png">Top of Empire State Building</a> [Extract from Table 1 of paper, with permission]
%e The array begins (only the central column, A287871, is correctly aligned):
%e ...............1 0 1
%e ............3 -1 2 1 3
%e ..........4 -2 2 0 2 2 4
%e ..........6 -3 3 0 3 3 6
%e ..........8 -4 4 0 4 4 8
%e ......12 -7 5 -2 3 1 4 5 9
%e .....17 -10 7 -3 4 1 5 6 11
%e .......9 -5 4 -1 3 2 5 7 12
%e ......14 -8 6 -2 4 2 6 8 14
%e .....19 -11 8 -3 5 2 7 9 16
%e ......11 -6 5 -1 4 3 7 10 17
%e ......16 -9 7 -2 5 3 8 11 19
%e .....21 -12 9 -3 6 3 9 12 21
%e .33 -20 13 -7 6 -1 5 4 9 13 22
%e 46 -28 18 -10 8 -2 6 4 10 14 24
%e ..25 -15 10 -5 5 0 5 5 10 15 25
%e .38 -23 15 -8 7 -1 6 5 11 16 27
%e 51 -31 20 -11 9 -2 7 5 12 17 29
%e ...
%Y The central column is A287871.
%Y See A287873 for the right-hand portion of the array.
%K sign,tabf
%O 0,4
%A _N. J. A. Sloane_, Jun 15 2017