Integers m such that m divides (2^m-2)^2 and (m-2)^((k-1)*(1+k*(m-1))) == 1 (mod k), where k = 2^m - 1.
A190213
Integers m such that m divides (2^m-2)^2 and (m-2)^((k-1)*(1+k*(m-1))) == 1 (mod k), where k = 2^m - 1.
Terms
- a(0) =1a(1) =3a(2) =4a(3) =5a(4) =7a(5) =13a(6) =17a(7) =19a(8) =31a(9) =61a(10) =89a(11) =107a(12) =127a(13) =521a(14) =607a(15) =1279a(16) =2203a(17) =2281a(18) =3217a(19) =4253a(20) =4423a(21) =9689a(22) =9941a(23) =11213a(24) =19937a(25) =21701a(26) =23209a(27) =44497a(28) =86243a(29) =110503
External references
- oeis: A190213