# A238427 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 5 5 12 6 31 7 81 8 219 9 599 10 1669 11 4698 12 13378 13 38414 14 111200 15 324026 16 949930 17 2799477 18 8289481 19 24649698 20 73580353 21 220402603 22 662285725 23 1995853152 24 6030654313 25 18266757996 26 55454844238 27 168704450182 28 514231352572 29 1570282693387 30 4803220361258 31 14715518413613 32 45150691283345 33 138726758012623