# A342764 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 7 5 13 6 26 7 51 8 97 9 191 10 366 11 713 12 1375 13 2673 14 5164 15 10031 16 19405 17 37663 18 72922 19 141461 20 274019 21 531405 22 1029640 23 1996395 24 3868793 25 7500411 26 14536342 27 28179521 28 54617039