# A104228 (b-file synthesized from sequence entry) 1 17 2 29 3 41 4 53 5 89 6 101 7 113 8 173 9 269 10 353 11 389 12 461 13 509 14 521 15 701 16 773 17 929 18 1013 19 1181 20 1193 21 1289 22 1301 23 1361 24 1721 25 1889 26 1901 27 1949 28 2213 29 2381 30 2441 31 2609 32 2729 33 2741 34 2861 35 2969 36 3209 37 3221 38 3821 39 4001 40 4133 41 4421 42 4481 43 4673 44 4793 45 4889 46 5381 47 5393 48 5801 49 5813 50 6173 51 6653 52 7349 53 7529