Number of partitions of 2n into parts of exactly n sorts which are introduced in ascending order.

A258467

Number of partitions of 2n into parts of exactly n sorts which are introduced in ascending order.

Terms

    a(0) =1a(1) =2a(2) =12a(3) =130a(4) =2216a(5) =52078a(6) =1558219a(7) =56524414a(8) =2406802476a(9) =117575627562

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