A011005 Decimal expansion of 4th root of 7.

1, 6, 2, 6, 5, 7, 6, 5, 6, 1, 6, 9, 7, 7, 8, 5, 7, 4, 3, 2, 1, 1, 2, 3, 2, 3, 4, 5, 4, 9, 3, 7, 6, 0, 1, 7, 3, 0, 1, 8, 2, 7, 0, 7, 9, 2, 2, 6, 9, 4, 9, 7, 6, 1, 8, 1, 8, 7, 4, 5, 5, 5, 8, 3, 4, 8, 8, 6, 7, 6, 7, 4, 1, 1, 7, 2, 6, 8, 0, 0, 1, 8, 6, 9, 7, 3, 4, 2, 5, 6, 7, 8, 2, 3, 0, 5, 3, 4, 9

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..5000

Programs

Mathematica

RealDigits[Power[7, (4)^-1],10,100][[1]]  (* Harvey P. Dale, Mar 13 2011 *)

PARI

sqrtn(7,4) \\ Charles R Greathouse IV, Apr 14 2014