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A144257 as a triangular array

1
20
310
4210
53210
643210
7543210
86543210
976543210
10876543210
119876543210
12109876543210
1311109876543210
1412111098765

A144257 as a square array

1234567891011121314
0123456789101112
01234567891011
012345678910
0123456789
012345678
01234567
0123456
012345
0123
012
01
0

A144257 as an upper right triangle

1234567891011121314
0123456789101112
01234567891011
012345678910
0123456789
012345678
01234567
0123456
012345
0123
012
01
0

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Last modified January 19 04:16 EST 2019. Contains 319304 sequences. (Running on oeis4.)