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A233558 as a triangular array

1
22
303
4114
52325
635536
7470747
85022058
961454169
107268862710
118381101183811
1294101331104912
1310512367631251013
14116145911119514

A233558 as a square array

1234567891011121314
201234567891011
313570123456
42502468101214
53725811135
640480369
7516113711
86281611
9731039
1084125
119514
1210
13
1234567891011121314
201234567891011
313570123456
42502468101214
53725811135
640480369
7516113711
86281611
9731039
1084125
119514
1210
13