# A177968 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 5 5 7 6 12 7 25 8 29 9 39 10 61 11 65 12 115 13 161 14 189 15 365 16 470 17 641 18 841 19 904 20 1821 21 2158 22 2502 23 4207 24 3462 25 6924 26 3749 27 7498 28 11201 29 17935 30 25964 31 17161 32 22524 33 38972 34 14735 35 33851