[1,2,12,3,13,23,123,4,14,24,34,124,134,234,1234,5, 15,25,35,45,125,135,145,235,245,345,1235,1245, 1345,2345,12345,6,16,26,36,46,56,126,136,146,156, 236,246,256,346,356,456,1236,1246,1256,1346,1356, 1456,2346,2356]