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A202452 as a triangular array

1
10
210
3100
52100
831000
13521000
218310000
34135210000
552183100000
89341352100000
1445521831000000

A202452 as a square array

1123581321345589144
011235813213455
001123581321
000112358
00001123
0000011
000000
00000
0000
000
00
0
1123581321345589144
011235813213455
001123581321
000112358
00001123
0000011
000000
00000
0000
000
00
0