# A165724 (b-file synthesized from sequence entry) 1 7 2 13 3 19 4 55 5 103 6 121 7 127 8 163 9 253 10 391 11 721 12 793 13 1063 14 1441 15 2719 16 3313 17 9595 18 13045 19 17863 20 21889 21 46243 22 49891