# A295196 (b-file synthesized from sequence entry) 1 7 2 23 3 31 4 47 5 71 6 79 7 263 8 271 9 1031 10 1039 11 2063 12 4111 13 32783 14 65543 15 65551 16 262151 17 1048583 18 4194319 19 8388623 20 67108879 21 268435463 22 1073741831 23 1073741839 24 4294967311