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A137981 as a triangular array

2
-330
-92-120696
720-8340-522024120
40296103680-722160-2894401216080
-7560001057980013003200-73306800-2128140086350320
-71284800-26853120022831401601799884800-9170280000-20724076808319024000
2438553600-41653241280

A137981 as a square array

2-3-9272040296-756000-712848002438553600
30-120-834010368010579800-268531200-41653241280
696-5220-722160130032002283140160
24120-289440-733068001799884800
1216080-21281400-9170280000
86350320-2072407680
8319024000

A137981 as an upper right triangle

2-3-9272040296-756000-712848002438553600
30-120-834010368010579800-268531200-41653241280
696-5220-722160130032002283140160
24120-289440-733068001799884800
1216080-21281400-9170280000
86350320-2072407680
8319024000

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Last modified May 24 15:54 EDT 2024. Contains 372778 sequences. (Running on oeis4.)