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A049061 formatted as a triangular array:

1
1 -1
1 0 -1
1 -1 -1 1
1 2 -6 2 1
1 1 -8 8 -1 -1
1 8 -19 0 19 -8 -1
1 7 -27 19 19 -27 7 1
1 22 -32 -86 190 -86 -32 22 1
1 21 -54 -54 276 -276 54 54 -21 -1
1 52 27 -648 1002 0 -1002 648 -27 -52 -1

A049061 formatted as a square array:

1 1 1 1 1 1 1 1 1 1 1
-1 0 -1 2 1 8 7 22 21 52
-1 -1 -6 -8 -19 -27 -32 -54 27
1 2 8 0 19 -86 -54 -648
1 -1 19 19 190 276 1002
-1 -8 -27 -86 -276 0
-1 7 -32 54 -1002
1 22 54 648
1 -21 -27
-1 -52
-1

A049061 formatted as an upper right triangle:

1 1 1 1 1 1 1 1 1 1 1
-1 0 -1 2 1 8 7 22 21 52
-1 -1 -6 -8 -19 -27 -32 -54 27
1 2 8 0 19 -86 -54 -648
1 -1 19 19 190 276 1002
-1 -8 -27 -86 -276 0
-1 7 -32 54 -1002
1 22 54 648
1 -21 -27
-1 -52
-1

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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