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A213887 as a triangular array

1
01
011
0121
01331
004641
003101051
00212201561
0011231352171
000104065562881
000644101120843691
0

A213887 as a square array

100000000000
1111000000
123432100
136101212106
141020314044
15153565101
162156120
172884
1836
19
1
100000000000
1111000000
123432100
136101212106
141020314044
15153565101
162156120
172884
1836
19
1