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A026268 as a triangular array

1
11
111
1222
13564
149141510
151427383925
1620467910410264
172772145229285270166
1835106244446659784721436
194414938579613491889216419411157
110542025781330253040345402599452623098

A026268 as a square array

111111111111
112345678910
1259142027354454
2614274672106149202
4153879145244385578
10391042294467961330
2510228565913492530
6427078418894034
16672121645402
43619415994
11575262
3098
111111111111
112345678910
1259142027354454
2614274672106149202
4153879145244385578
10391042294467961330
2510228565913492530
6427078418894034
16672121645402
43619415994
11575262
3098