Numbers having period-2 7-digitized sequences.

Terms

a(0) =22a(1) =202a(2) =220a(3) =256a(4) =265a(5) =526a(6) =562a(7) =577a(8) =625a(9) =652a(10) =757a(11) =775a(12) =1123a(13) =1132a(14) =1213a(15) =1231a(16) =1237a(17) =1273a(18) =1312a(19) =1321a(20) =1327a(21) =1369a(22) =1372a(23) =1396a(24) =1456a(25) =1465a(26) =1546a(27) =1564a(28) =1639a(29) =1645