Multiplicative order of 2 mod 2n+1.

Terms

a(0) =1a(1) =2a(2) =4a(3) =3a(4) =6a(5) =10a(6) =12a(7) =4a(8) =8a(9) =18a(10) =6a(11) =11a(12) =20a(13) =18a(14) =28a(15) =5a(16) =10a(17) =12a(18) =36a(19) =12a(20) =20a(21) =14a(22) =12a(23) =23a(24) =21a(25) =8a(26) =52a(27) =20a(28) =18a(29) =58