# A333710 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 14 5 28 6 212 7 424 8 3060 9 13488 10 131212 11 262424 12 6444376 13 12888752 14 145241952 15 2146993212 16 40313750564 17 80627501128 18 2265599072684 19 4531198145368 20 173216179971224 21 3202520631881824 22 42018513097187068 23 84037026194374136 24 7051753589203676704 25 50056536119264986708