# A333368 (b-file synthesized from sequence entry) 1 3 2 31 3 191 4 5119 5 131071 6 524287 7 3758096383 8 4353564671 9 1356446145697 10 1618481116086271 11 2058911320946489 12 1046695266054721074427023041 13 847823165504324070285888664019 14 5359447279004780799548150067050349330431 15 2817103802133904744169307240538184064530443801964688726052818649087