# A150088 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 19 4 66 5 243 6 930 7 3676 8 14903 9 61584 10 258894 11 1103447 12 4758012 13 20732432 14 91124592 15 403681327 16 1800752730 17 8081803201 18 36474901389 19 165435268106 20 753751636931 21 3448465225387 22 15836193654948 23 72977234653985 24 337370456592555 25 1564255503416559 26 7272766119061584 27 33899558103994633