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A355663 as a triangular array

0
11
232
3443
471274
588885
611241524116
71219161619127
8152823482328158
916162439392416169
1019483156515631481910
112035323235353232352011

A355663 as a square array

01234567891011
13478111215161920
24128241928164835
378151623243132
48241648395632
5111923395135
61228245635
715163132
8164832
91935
1020
11
01234567891011
13478111215161920
24128241928164835
378151623243132
48241648395632
5111923395135
61228245635
715163132
8164832
91935
1020
11