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A144912 formatted as a triangular array:

0
2 -2
-1 0 -4
1 2 -2 -6
1 0 0 -4 -8
3 2 2 -2 -6 -10
-2 4 -2 0 -4 -8 -12
0 -4 0 2 -2 -6 -10 -14
0 -2 2 -4 0 -4 -8 -12 -16
2 0 4 -2 2 -2 -6 -10 -14 -18
0 -2 0 0 -6 0 -4 -8 -12 -16 -20

A144912 formatted as a square array:

0 2 -1 1 1 3 -2 0 0 2 0
-2 0 2 0 2 4 -4 -2 0 -2
-4 -2 0 2 -2 0 2 4 0
-6 -4 -2 0 2 -4 -2 0
-8 -6 -4 -2 0 2 -6
-10 -8 -6 -4 -2 0
-12 -10 -8 -6 -4
-14 -12 -10 -8
-16 -14 -12
-18 -16
-20

A144912 formatted as an upper right triangle:

0 2 -1 1 1 3 -2 0 0 2 0
-2 0 2 0 2 4 -4 -2 0 -2
-4 -2 0 2 -2 0 2 4 0
-6 -4 -2 0 2 -4 -2 0
-8 -6 -4 -2 0 2 -6
-10 -8 -6 -4 -2 0
-12 -10 -8 -6 -4
-14 -12 -10 -8
-16 -14 -12
-18 -16
-20

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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