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A168318 as a triangular array

1
01
021
0123
01366
00291216
00212183239
0019244878103
00193064117206263
00062480156309526690
0006249619541278913801791

A168318 as a square array

10000000000
1211000000
123221100
369129966
6121824302424
163248648096
3978117156195
103206309412
263526789
6901380
1791
10000000000
1211000000
123221100
369129966
6121824302424
163248648096
3978117156195
103206309412
263526789
6901380
1791