# A174567 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 8 5 10 6 11 7 20 8 22 9 40 10 44 11 80 12 88 13 100 14 101 15 110 16 200 17 202 18 220 19 400 20 404 21 440 22 800 23 808 24 880 25 1000 26 1001 27 1010 28 1100 29 1111 30 2000 31 2002 32 2020 33 2200 34 2222 35 4000 36 4004 37 4040 38 4400 39 4444 40 8000 41 8008 42 8080 43 8800 44 8888