%I #3 Nov 03 2016 06:16:31
%S 1,1,1,1,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,5,5,5,5,5,5,5,5,5,5,5,5,8,8,8,
%T 8,8,8,8,8,8,8,8,8,8,8,8,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,
%U 13,13,13
%N Arrangement of Fibonacci-numbers in a centered triangular fashion, such that every number is the difference and/or sum of adjacent numbers.
%e ............5
%e .........5.3.
%e ......5.3.2.5
%e ...5.3.2.1.3.
%e 5.3.2.1.1.2.5
%e ...5.3.2.1.3.
%e ......5.3.2.5
%e .........5.3.
%e ............5
%Y Cf. A131410.
%K nonn
%O 1,5
%A _Mark Dols_, Jul 21 2009