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A154680 as a triangular array

2
510
81522
11202938
1425364758
173043566982
203550658095110
2340577491108125142
26456483102121140159178
29507192113134155176197218
325578101124147170193216239262

A154680 as a square array

2581114172023262932
10152025303540455055
222936435057647178
38475665748392101
58698091102113124
8295108121134147
110125140155170
142159176193
178197216
218239
262

A154680 as an upper right triangle

2581114172023262932
10152025303540455055
222936435057647178
38475665748392101
58698091102113124
8295108121134147
110125140155170
142159176193
178197216
218239
262

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Last modified April 19 13:40 EDT 2024. Contains 371792 sequences. (Running on oeis4.)