# A148156 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 11 5 30 6 96 7 298 8 1028 9 3485 10 12724 11 45705 12 173541 13 650298 14 2544692 15 9844616 16 39436571 17 156427321 18 638580481 19 2584305014 20 10714655777 21 44081695845 22 185148725201 23 772276053413 24 3279498523275 25 13839450883147 26 59326871290544 27 252873214965116 28 1092926867474669 29 4698994759995838