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A143291 as a triangular array

1
31
821
19421
438321
94155321
2012794321
423481564321
88084241054321
18151453816754321
3719248602411654321
75824219435178654321
153977101465125127654321

A143291 as a square array

13819439420142388018153719758215397
124815274884145248421710
123591524386094146
123461016243551
123457111725
123456812
1234567
123456
12345
1234
123
12
1

A143291 as an upper right triangle

13819439420142388018153719758215397
124815274884145248421710
123591524386094146
123461016243551
123457111725
123456812
1234567
123456
12345
1234
123
12
1

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)