Sierpiński numbers that have at least two covering sets.

Terms

a(0) =12151397a(1) =31210219a(2) =45181667a(3) =56191673a(4) =66887071a(5) =68468753a(6) =69169397a(7) =71307347a(8) =114921271a(9) =122311103a(10) =133228283a(11) =152252267a(12) =154337567a(13) =182479909a(14) =185282537a(15) =192413177a(16) =210465533a(17) =220192013a(18) =226521259a(19) =235663343a(20) =236281883a(21) =253282909a(22) =275248343a(23) =282777829