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A059340 as a triangular array

1
21
551
1523101
5210976191
203544531224361
877287636412204631691
4140161132520820089847117491341
21147954951785641776311001713133148382631

A059340 as a square array

1251552203877414021147
152310954428761611395495
11076531364125208178564
119224220420089177631
1366318471100171
169174931331
11344838
1263
1
1251552203877414021147
152310954428761611395495
11076531364125208178564
119224220420089177631
1366318471100171
169174931331
11344838
1263
1