# A212559 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 27 4 244 5 2745 6 36966 7 580111 8 10399096 9 209672721 10 4696872490 11 115732052271 12 3110867569140 13 90587751885241 14 2840805169411678 15 95450112571474095 16 3420897993621996016 17 130266500391456691233 18 5252293203395848789842 19 223535386151669737094095 20 10014286301754519472897900