a(n)=sqrt(A145848(n)).

Terms

a(0) =7a(1) =41a(2) =380a(3) =475a(4) =506a(5) =570a(6) =759a(7) =4901a(8) =36050a(9) =39845a(10) =48700a(11) =49964a(12) =50281a(13) =54075a(14) =55973a(15) =72100a(16) =74946a(17) =79690a(18) =90125a(19) =99928a(20) =499001a(21) =3200225a(22) =3247660a(23) =3497480a(24) =3747300a(25) =3905413a(26) =3997120a(27) =4246940a(28) =4623250a(29) =4803500