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A053121 formatted as a triangular array:

1
0 1
1 0 1
0 2 0 1
2 0 3 0 1
0 5 0 4 0 1
5 0 9 0 5 0 1
0 14 0 14 0 6 0 1
14 0 28 0 20 0 7 0 1
0 42 0 48 0 27 0 8 0 1
42 0 90 0 75 0 35 0 9 0 1
0 132 0 165 0 110 0 44 0 10 0 1

A053121 formatted as a square array:

1 0 1 0 2 0 5 0 14 0 42 0
1 0 2 0 5 0 14 0 42 0 132
1 0 3 0 9 0 28 0 90 0
1 0 4 0 14 0 48 0 165
1 0 5 0 20 0 75 0
1 0 6 0 27 0 110
1 0 7 0 35 0
1 0 8 0 44
1 0 9 0
1 0 10
1 0
1

A053121 formatted as an upper right triangle:

1 0 1 0 2 0 5 0 14 0 42 0
1 0 2 0 5 0 14 0 42 0 132
1 0 3 0 9 0 28 0 90 0
1 0 4 0 14 0 48 0 165
1 0 5 0 20 0 75 0
1 0 6 0 27 0 110
1 0 7 0 35 0
1 0 8 0 44
1 0 9 0
1 0 10
1 0
1

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.


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