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A049310 formatted as a triangular array:

1
0 1
-1 0 1
0 -2 0 1
1 0 -3 0 1
0 3 0 -4 0 1
-1 0 6 0 -5 0 1
0 -4 0 10 0 -6 0 1
1 0 -10 0 15 0 -7 0 1
0 5 0 -20 0 21 0 -8 0 1
-1 0 15 0 -35 0 28 0 -9 0 1
0 -6 0 35 0 -56 0 36 0 -10 0 1

A049310 formatted as a square array:

1 0 -1 0 1 0 -1 0 1 0 -1 0
1 0 -2 0 3 0 -4 0 5 0 -6
1 0 -3 0 6 0 -10 0 15 0
1 0 -4 0 10 0 -20 0 35
1 0 -5 0 15 0 -35 0
1 0 -6 0 21 0 -56
1 0 -7 0 28 0
1 0 -8 0 36
1 0 -9 0
1 0 -10
1 0
1

A049310 formatted as an upper right triangle:

1 0 -1 0 1 0 -1 0 1 0 -1 0
1 0 -2 0 3 0 -4 0 5 0 -6
1 0 -3 0 6 0 -10 0 15 0
1 0 -4 0 10 0 -20 0 35
1 0 -5 0 15 0 -35 0
1 0 -6 0 21 0 -56
1 0 -7 0 28 0
1 0 -8 0 36
1 0 -9 0
1 0 -10
1 0
1

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.


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