# A151197 (b-file synthesized from sequence entry) 0 1 1 3 2 12 3 52 4 238 5 1115 6 5313 7 25582 8 124147 9 605854 10 2969417 11 14601804 12 71990585 13 355671293 14 1760174880 15 8722964916 16 43278373590 17 214928743357 18 1068241681155 19 5313039611577 20 26440634886864 21 131649846629066 22 655781098819477 23 3267854654023179 24 16289622505803944 25 81224322390209525