# A290578 (b-file synthesized from sequence entry) 1 1 2 2 3 5 4 8 5 10 6 11 7 20 8 56 9 161 10 172 11 263 12 290 13 578 14 800 15 1166 16 3382 17 3848 18 7036 19 10487 20 12101 21 36211 22 94337 23 138737