# A150888 (b-file synthesized from sequence entry) 0 1 1 2 2 8 3 33 4 152 5 703 6 3363 7 16123 8 78405 9 382031 10 1874728 11 9214167 12 45464404 13 224599699 14 1112123401 15 5511828827 16 27357175892 17 135878942511 18 675540367558 19 3360357589306 20 16726611246327 21 83293809912290 22 414976379155574 23 2068124206841016 24 10310539526314684 25 51416048094701054 26 256466352906588744