# A019277 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 5 5 7 6 15 7 16 8 17 9 78 10 97 11 101 12 120 13 174 14 214 15 239 16 261 17 263 18 296 19 380 20 557 21 1287 22 1524 23 1722 24 1911 25 2023 26 2373