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A058720 as a triangular array

1
11
151
131161
1352337421
18389187002570991
14330387642631907647168652191

A058720 as a square array

1111111
15313528389433038
116337187007642631
1422570907647
19916865
1219
1

A058720 as an upper right triangle

1111111
15313528389433038
116337187007642631
1422570907647
19916865
1219
1

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Last modified February 24 10:37 EST 2020. Contains 332209 sequences. (Running on oeis4.)