a(n) is the number of (strict) chains of subspaces with ends 0 and (F_4)^n.

A347842

a(n) is the number of (strict) chains of subspaces with ends 0 and (F_4)^n.

Terms

    a(0) =1a(1) =1a(2) =6a(3) =148a(4) =14808a(5) =5942608a(6) =9546508128

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