# A151290 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 23 4 82 5 297 6 1092 7 4074 8 15316 9 57993 10 220913 11 845017 12 3245513 13 12504416 14 48308973 15 187089688 16 726028123 17 2822654120 18 10991682069 19 42864045010 20 167373921420 21 654315764945 22 2560630856073 23 10030570526492 24 39326590305594 25 154311641356522 26 605946719764108 27 2381052954112297