The successive approximations up to 2^n for 2-adic integer 7^(1/3).

Terms

a(0) =0a(1) =1a(2) =3a(3) =7a(4) =7a(5) =23a(6) =23a(7) =23a(8) =151a(9) =407a(10) =407a(11) =1431a(12) =3479a(13) =3479a(14) =11671a(15) =11671a(16) =44439a(17) =109975a(18) =241047a(19) =503191a(20) =1027479a(21) =2076055a(22) =2076055a(23) =6270359a(24) =6270359a(25) =6270359a(26) =6270359a(27) =6270359a(28) =6270359a(29) =274705815