Numbers k such that core(k+1) = core(k)+1 and k is not squarefree, where core(k) = A007913(k).

Terms

a(0) =49a(1) =242a(2) =1681a(3) =2645a(4) =4374a(5) =18490a(6) =23762a(7) =39325a(8) =48734a(9) =57121a(10) =158949a(11) =182182a(12) =410669a(13) =453870a(14) =601425a(15) =656914a(16) =843637a(17) =912950a(18) =1143449a(19) =1228122a(20) =1275125a(21) =1608574a(22) =1940449a(23) =2328482a(24) =2948406a(25) =3041577a(26) =3203050a(27) =3721549a(28) =4495985a(29) =4705074