# A137746 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 0 6 1 7 6 8 26 9 100 10 360 11 1246 12 4217 13 14102 14 46861 15 155212 16 513336 17 1697264 18 5614670 19 18594258 20 61671770 21 204907302