a(n) = sqrt((A114052(n)^2 - 1)/27)/5.

A370188

a(n) = sqrt((A114052(n)^2 - 1)/27)/5.

Terms

    a(0) =0a(1) =1a(2) =52a(3) =2703a(4) =140504a(5) =7303505a(6) =379641756a(7) =19734067807

External references