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A097807 as a triangular array

1
-11
1-11
-11-11
1-11-11
-11-11-11
1-11-11-11
-11-11-11-11
1-11-11-11-11
-11-11-11-11-11
1-11-11-11-11-11
-11-11-11-11-11-11
1-11

A097807 as a square array

1-11-11-11-11-11-11
1-11-11-11-11-11-1
1-11-11-11-11-11
1-11-11-11-11
1-11-11-11-1
1-11-11-11
1-11-11-1
1-11-11
1-11-1
1-11
1-1
1

A097807 as an upper right triangle

1-11-11-11-11-11-11
1-11-11-11-11-11-1
1-11-11-11-11-11
1-11-11-11-11
1-11-11-11-1
1-11-11-11
1-11-11-1
1-11-11
1-11-1
1-11
1-1
1

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Last modified November 19 06:03 EST 2019. Contains 329310 sequences. (Running on oeis4.)