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A120911 as a triangular array

1
32
645
10879
1512111314
211817161920
28242322252627
3632303129333435
454039383741424344
55504847494651525354
6660585759566162636465
787270696871

A120911 as a square array

136101521283645556678
2481218243240506072
571117233039485870
91316223138475769
1419252937495968
20263341465671
2734425161
35435262
445363
5464
65

A120911 as an upper right triangle

136101521283645556678
2481218243240506072
571117233039485870
91316223138475769
1419252937495968
20263341465671
2734425161
35435262
445363
5464
65

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Last modified November 27 03:56 EST 2021. Contains 349345 sequences. (Running on oeis4.)