Squarefree terms of A276655.

Terms

a(0) =1a(1) =21a(2) =30a(3) =979a(4) =1411a(5) =1463a(6) =1547a(7) =1742a(8) =1947a(9) =2059a(10) =2090a(11) =2210a(12) =2318a(13) =2405a(14) =2419a(15) =2491a(16) =2703a(17) =2886a(18) =2945a(19) =3182a(20) =3243a(21) =3534a(22) =3567a(23) =16102a(24) =17654a(25) =20559a(26) =21243a(27) =25543a(28) =25705a(29) =27145