# A275969 (b-file synthesized from sequence entry) 1 3 2 5 3 13 4 17 5 51 6 85 7 193 8 257 9 769 10 1285 11 3281 12 4369 13 12289 14 21845 15 49601 16 65537 17 196611 18 327685 19 786433 20 1114129 21 3158273 22 5570645 23 12648641 24 16843009 25 50397953 26 84215045 27 202113281 28 286331153 29 805384193 30 1431655765 31 3221225473 32 8168859365 33 12952273921