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A153206 as a triangular array

1
11
212
5225
1554514
511510101443
1895130252843143
748189102757086143509
31287483782552102152865091922
1373131281496945714645715101819227651

A153206 as a square array

11251551189748312813731
112515511897483128
22410301023781496
55102575255945
14142870210714
434386215645
143143286715
5095091018
19221922
7651
11251551189748312813731
112515511897483128
22410301023781496
55102575255945
14142870210714
434386215645
143143286715
5095091018
19221922
7651