# A316694 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 3 5 6 6 13 7 28 8 62 9 143 10 338 11 804 12 1948 13 4789 14 11886 15 29796 16 75316 17 191702 18 491040 19 1264926 20 3274594 21 8514784 22 22229481 23 58243870