# A038115 (b-file synthesized from sequence entry) 0 1 1 2 2 11 3 12 4 21 5 22 6 31 7 101 8 1001 9 1002 10 1011 11 1012 12 1021 13 10001 14 100001 15 100002 16 100011 17 100012 18 100021 19 1000001 20 1000002 21 1000011 22 1000012 23 1000021 24 1000022 25 1000031 26 1000101 27 1001001 28 1001002 29 1001011 30 1001012 31 1001021 32 1010001