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A086270 as a triangular array

1
31
641
10951
15161261
2125221571
283635281881
36495145342191
45647066554024101
5581929181654627111
6610011712011296755230121
78121145153148133111

A086270 as a square array

136101521283645556678
149162536496481100121
15122235517092117145
161528456691120153
1718345581112148
1821406596133
19244675111
1102752
11130
112
1
136101521283645556678
149162536496481100121
15122235517092117145
161528456691120153
1718345581112148
1821406596133
19244675111
1102752
11130
112
1