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A257488 as a triangular array

1
31
861
222591
649251121
19632423786151
6251128996484130181
2055393439662377860183211
691713812153351074448451392245241
237134888458359460682460388592107316271

A257488 as a square array

13822641966252055691723713
162592324112839341381248884
195123799639661533558359
1128648423771074446068
115130860484524603
11818313928859
1212452107
124316
127
1

A257488 as an upper right triangle

13822641966252055691723713
162592324112839341381248884
195123799639661533558359
1128648423771074446068
115130860484524603
11818313928859
1212452107
124316
127
1

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)