# A137682 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 7 5 17 6 40 7 96 8 228 9 544 10 1296 11 3089 12 7361 13 17544 14 41810 15 99643 16 237471 17 565946 18 1348773 19 3214424 20 7660679 21 18257085 22 43510652 23 103695461 24 247129108 25 588963062 26 1403628615 27 3345155947 28 7972242937 29 18999609718 30 45280252031