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alternating n.  and  iban n.

First numbers that belong to both sets:

1, 2, 3, 4, 7, 10, 12, 14, 21, 23, 27, 41, 43, 47, 70, 72, 74, 101, 103, 107, 121, 123, 127, 141, 143, 147, 210, 212, 214, 270, 272, 274, 301, 303, 307, 321, 323, 327, 341, 343, 347, 410, 412, 414, 470, 472, 474, 701, 703, 707, 721, 723, 727, 741, 743, 747, 1010, 1012, 1014, 1070, 1072, 1074, 1210, 1212, 1214, 1270, 1272, 1274, 1410, 1412, 1414, 1470, 1472, 1474, 2101, 2103, 2107, 2121, 2123, 2127, 2141, 2143, 2147, 2301, 2303, 2307, 2321, 2323, 2327, 2341, 2343, 2347, 2701, 2703, 2707, 2721, 2723, 2727, 2741, 2743, 2747, 3010, 3012, 3014, 3070, 3072, 3074, 3210, 3212, 3214, 3270, 3272, 3274, 3410, 3412, 3414, 3470, 3472, 3474, 4101, 4103, 4107, 4121, 4123, 4127, 4141, 4143, 4147, 4301, 4303, 4307, 4321, 4323, 4327, 4341, 4343, 4347, 4701, 4703, 4707, 4721, 4723, 4727, 4741, 4743, 4747, 7010, 7012, 7014, 7070, 7072, 7074, 7210, 7212, 7214, 7270, 7272, 7274, 7410, 7412, 7414, 7470, 7472, 7474, 10101, 10103, 10107, 10121, 10123, 10127, 10141, 10143, 10147, 10301, 10303, 10307, 10321, 10323, 10327, 10341, 10343, 10347, 10701, 10703, 10707, 10721, 10723, 10727, 10741, 10743, 10747, 12101, 12103, 12107, 12121, 12123, 12127, 12141, 12143, 12147, 12301, 12303, 12307, 12321, 12323, 12327, 12341, 12343, 12347, 12701, 12703, 12707, 12721, 12723, 12727, 12741, 12743, 12747, 14101, 14103, 14107, 14121, 14123, 14127, 14141, 14143, 14147, 14301, 14303, 14307, 14321, 14323, 14327, 14341, 14343, 14347, 14701, 14703, 14707, 14721, 14723, 14727, 14741, 14743, 14747, 21010, 21012, 21014, 21070, 21072, 21074, 21210, 21212, 21214, 21270, 21272, 21274, 21410, 21412, 21414, 21470, 21472, 21474, 23010, 23012, 23014, 23070, 23072, 23074, 23210, 23212, 23214, 23270, 23272, 23274, 23410, 23412, 23414, 23470, 23472.

Some larger examples :