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A120730 as a triangular array

1
01
011
0021
00231
000541
0005951
0000141461
000014282071
0000042482781
000004290753591

A120730 as a square array

10000000000
1100000000
122000000
13550000
149141400
1514284242
16204890
172775
1835
19
1

A120730 as an upper right triangle

10000000000
1100000000
122000000
13550000
149141400
1514284242
16204890
172775
1835
19
1

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Last modified October 16 02:45 EDT 2018. Contains 316252 sequences. (Running on oeis4.)