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A020921 as a triangular array

1
11
011
0231
02541
04101051
0211191561
062135352171
04225269562881
063383126126843691
043411020525121012045101
010551653304624623301655511

A020921 as a square array

110000000000
112242646410
13510112122333455
141019355283110165
15153569126205330
162156126251462
172884210462
1836120330
1945165
11055
111
110000000000
112242646410
13510112122333455
141019355283110165
15153569126205330
162156126251462
172884210462
1836120330
1945165
11055
111