# A046612 (b-file synthesized from sequence entry) 1 1 2 5 3 12 4 46 5 34 6 126 7 2352 8 8844 9 33462 10 25454 11 97240 12 1864356 13 7171892 14 27665596 15 21395520 16 82907640 17 321868854 18 1251661518 19 4874644104 20 19010020260 21 74225053980 22 290134122564 23 1135234789728 24 4446052592904 25 17427428373420