# A191611 (b-file synthesized from sequence entry) 1 3 2 7 3 8 4 31 5 127 6 8191 7 131071 8 524287 9 2147483647 10 2305843009213693951 11 618970019642690137449562111 12 162259276829213363391578010288127 13 170141183460469231731687303715884105727