# A158699 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 21 12 32 13 43 14 54 15 65 16 76 17 87 18 98 19 109 20 210 21 321 22 432 23 543 24 654 25 765 26 876 27 987 28 1098 29 2109 30 3210 31 4321 32 5432 33 6543 34 7654 35 8765 36 9876 37 10987 38 21098 39 32109 40 43210 41 54321 42 65432 43 76543 44 87654 45 98765 46 109876 47 210987 48 321098 49 432109 50 543210