Vandermonde determinant of the first n numbers (1,3,4,6,7,9,10,...) = (j+floor(j/2)).

A203430

Vandermonde determinant of the first n numbers (1,3,4,6,7,9,10,...) = (j+floor(j/2)).

Terms

    a(0) =1a(1) =2a(2) =6a(3) =180a(4) =12960a(5) =18662400a(6) =84652646400

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