a(n)=B(2n,4)/B(2n) (see comment).

A096047

a(n)=B(2n,4)/B(2n) (see comment).

Terms

    a(0) =1a(1) =22a(2) =346a(3) =5482a(4) =87466a(5) =1398442a(6) =22370986a(7) =357919402a(8) =5726644906a(9) =91626056362

External references