# A139900 (b-file synthesized from sequence entry) 1 23 2 47 3 167 4 263 5 383 6 503 7 647 8 743 9 863 10 887 11 983 12 1103 13 1223 14 1367 15 1487 16 1583 17 1607 18 1823 19 1847 20 2063 21 2087 22 2207 23 2423 24 2447 25 2543 26 2663 27 2687 28 2903 29 2927 30 3023 31 3167 32 3407 33 3527 34 3623 35 3767 36 3863 37 4007 38 4127 39 4463 40 4583 41 4703 42 4943