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A154816 as a triangular array

2
55
176617
6568568565
2576572163426572257
102560675313300313300606751025
409754941853404551071206053404555494184097
1638549318258485621530394557530394557584856215493182516385

A154816 as a square array

2517652571025409716385
5666856572606755494184931825
1768516342313300534045584856215
65657231330010712060303945575
257606755340455303945575
102554941884856215
40974931825
16385
2517652571025409716385
5666856572606755494184931825
1768516342313300534045584856215
65657231330010712060303945575
257606755340455303945575
102554941884856215
40974931825
16385