Number of permutations of 1,...,2n with alternate odd/even entries that have no adjacent members.

A092254

Number of permutations of 1,...,2n with alternate odd/even entries that have no adjacent members.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =10a(4) =226a(5) =8600a(6) =433220a(7) =28226254

External references