# A295138 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 11 4 27 5 41 6 90 7 133 8 282 9 412 10 860 11 1251 12 2596 13 3770 14 7806 15 11329 16 23438 17 34008 18 70336 19 102047 20 211032 21 306166 22 633122 23 918526 24 1899395 25 2755608 26 5698216 27 8266856 28 17094681 29 24800602 30 51284078 31 74401842