# A117528 (b-file synthesized from sequence entry) 1 2 2 3 3 13 4 41 5 43 6 109 7 137 8 167 9 181 10 199 11 307 12 373 13 421 14 491 15 587 16 661 17 1009 18 1097 19 1117 20 1373 21 1471 22 1483 23 1601 24 1607 25 1787 26 1913 27 2053 28 2089 29 2203 30 2267 31 2591 32 2819 33 2953 34 3191 35 3361 36 3623 37 3691 38 3779 39 3877 40 4051