Numbers to which Mersenne primes 2^p-1 can be congruent mod k! (for k > 1).

Terms

a(0) =1a(1) =3a(2) =7a(3) =31a(4) =127a(5) =271a(6) =607a(7) =2047a(8) =3151a(9) =8191a(10) =10111a(11) =40447a(12) =42367a(13) =48511a(14) =50431a(15) =80767a(16) =88831a(17) =90751a(18) =121087a(19) =131071a(20) =161407a(21) =163327a(22) =169471a(23) =171391a(24) =201727a(25) =209791a(26) =211711a(27) =243967a(28) =250111a(29) =282367