# A123310 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 18 4 93 5 650 6 5825 7 64486 8 858525 9 13460814 10 244360845 11 5063982498 12 118379934453 13 3090176655290 14 89294118056273 15 2834776197278278 16 98222473389128821 17 3693056479700344798 18 149906848766779722109