(Provable) Sierpiński numbers: odd numbers n such that for all k >= 1 the numbers n*2^k + 1 are composite.
A076336
(Provable) Sierpiński numbers: odd numbers n such that for all k >= 1 the numbers n*2^k + 1 are composite.
Terms
- a(0) =78557a(1) =271129a(2) =271577a(3) =322523a(4) =327739a(5) =482719a(6) =575041a(7) =603713a(8) =903983a(9) =934909a(10) =965431a(11) =1259779a(12) =1290677a(13) =1518781a(14) =1624097a(15) =1639459a(16) =1777613a(17) =2131043a(18) =2131099a(19) =2191531a(20) =2510177a(21) =2541601a(22) =2576089a(23) =2931767a(24) =2931991a(25) =3083723a(26) =3098059a(27) =3555593a(28) =3608251
External references
- oeis: A076336