Square root of pi(A064523(n)).

Terms

a(0) =0a(1) =2a(2) =3a(3) =5a(4) =689a(5) =2015a(6) =2783a(7) =3592a(8) =3919a(9) =3941a(10) =5156a(11) =5902a(12) =6063a(13) =8054a(14) =15683a(15) =16310a(16) =28239a(17) =29901a(18) =40328a(19) =55221a(20) =60246a(21) =74982a(22) =98883a(23) =129023a(24) =312400a(25) =328667a(26) =351586a(27) =815526a(28) =911097a(29) =1018921