# A150336 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 23 4 84 5 320 6 1262 7 5114 8 21083 9 88154 10 372868 11 1593621 12 6871015 13 29853188 14 130548316 15 574102027 16 2537245436 17 11263169847 18 50200245088 19 224556548825 20 1007809545113 21 4536610177289 22 20477454773837 23 92665005959394 24 420308185091775 25 1910551100747084 26 8702049387822175 27 39709772506902787