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A168020 as a triangular array

1
20
310
5000
72100
1100000
15301000
220200000
3050010000
42000000000
567320100000
7700000000000
1011100001000000

A168020 as a square array

1235711152230425677101
0102030507011
00100200300
0001000200
000010000
00000100
0000001
000000
00000
0000
000
00
0

A168020 as an upper right triangle

1235711152230425677101
0102030507011
00100200300
0001000200
000010000
00000100
0000001
000000
00000
0000
000
00
0

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)