# A138293 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 28 4 245 5 2816 6 40537 7 702976 8 14270153 9 332102656 10 8719631981 11 255020847104 12 8222803663549 13 289815184113664 14 11085650268060929 15 457386463819595776 16 20248713707077863953 17 957435459515190345728