# A218090 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 2 5 3 6 8 7 17 8 63 9 224 10 1248 11 8218 12 75992 13 906635 14 14447433 15 303100595 16 8415834690 17 309390830222 18 15105805368214 19 982300491033887