

A274644


Number of linear extensions of the onelevel grid poset G[(1^n), (0^(n1)), (0^(n1))].


5



1, 6, 71, 1266, 30206, 902796, 32420011, 1359292626, 65164480466, 3515569641156, 210779736073446, 13903319821066836, 1000559812125494272, 78012524487061307392, 6550837823204595073024, 589404446176366091567104, 56568586570039156279345152, 5768723174387470083567910912, 622900652040379384928709640192
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