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Arrangement of Fibonacci-numbers in a centered triangular fashion, such that every number is the difference and/or sum of adjacent numbers.
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%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