# A148086 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 10 5 22 6 59 7 149 8 396 9 1041 10 2907 11 7760 12 21816 13 60298 14 169741 15 475054 16 1359128 17 3816950 18 10972685 19 31304334 20 89879700 21 257711500 22 747124581 23 2144777317 24 6229523512 25 18035524556 26 52361269786 27 152014079572 28 443837403206 29 1288731108002 30 3768163857728 31 11001149176426 32 32145852887328