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A138186 as a triangular array

1
11
621
241831
168963641
9608402406051
9360576025204809061
705606552020160588084012671
8064005644802620805376011760134416881
79833607257600254016078624012096021168

A138186 as a square array

116241689609360705608064007983360
1218968405760655205644807257600
13362402520201602620802540160
1460480588053760786240
159084011760120960
16126134421168
17168
18
1
116241689609360705608064007983360
1218968405760655205644807257600
13362402520201602620802540160
1460480588053760786240
159084011760120960
16126134421168
17168
18
1