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A262307 as a triangular array

1
11
151
119191
165205651
1211179517952111
16651422136317142216651
1205910681963633163633110681920591
1630577876510365005236799011036500577876563051

A262307 as a square array

111111111
15196521166520596305
119205179514221106819778765
16517953631763633110365005
12111422163633123679901
166510681910365005
12059778765
16305
1
111111111
15196521166520596305
119205179514221106819778765
16517953631763633110365005
12111422163633123679901
166510681910365005
12059778765
16305
1