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A064580 as a triangular array

1
11
122
1355
1491413
1514284036
16204887118104
172775161273357309
18351102705368661100939
19441544239511782277234412905
110542086301572331059288946109009118

A064580 as a square array

11111111111
12345678910
259142027354454
514284875110154208
134087161270423630
361182735369511572
10435786617823310
309110027725928
93934418946
290510900
9118

A064580 as an upper right triangle

11111111111
12345678910
259142027354454
514284875110154208
134087161270423630
361182735369511572
10435786617823310
309110027725928
93934418946
290510900
9118

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Last modified March 29 09:14 EDT 2024. Contains 371268 sequences. (Running on oeis4.)