A011200 -id:A011200 - cp's OEIS frontend

A011439 Decimal expansion of 20th root of 20.

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

Offset: 1

N. J. A. Sloane

Ivan Panchenko, Table of n, a(n) for n = 1..1000
Sequences related to the decimal expansion of the n-th root of x, OEIS Index, Aug. 2017
Index entries for algebraic numbers, degree 20.

Cf. A011200 ... A011424 (n-th root of x=5..19, with n=6..20); A011425 ... A011438 (n-th root of 20, with n=6, ..., 19) ; A011440 ... A011519 (n-th root of n = 21, ..., 100).

RealDigits[N[20^(1/20),200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Jan 26 2012 *)

sqrtn(20,20) \\ M. F. Hasler, Aug 26 2017

A011440 Decimal expansion of 21st root of 21.

Original entry on oeis.org

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

Offset: 1

N. J. A. Sloane

Ivan Panchenko, Table of n, a(n) for n = 1..1000
Sequences related to the decimal expansion of the n-th root of x, OEIS Index, Aug. 2017

Cf. A011200 ... A011439 (n-th root of x = 5..20, with n = 6..20), A011441 ... A011519 (n-th root of n = 22, ..., 100).

RealDigits[Surd[21,21],10,120][[1]] (* Harvey P. Dale, Mar 14 2013 *)

sqrtn(21,21) \\ M. F. Hasler, Aug 26 2017

A011519 Decimal expansion of 100th root of 100.

Original entry on oeis.org

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

Offset: 1

N. J. A. Sloane

Vincenzo Librandi, Table of n, a(n) for n = 1..5000
M. F. Hasler, "Ranges": Index to n-th roots of x. OEIS Wiki, Aug 26 2017

Cf. A011200 ... A011214 (other roots of 5), A011215 ... A011439 (n-th roots of 6, ..., 20) ; A011440 ... A011519 (n-th root of n = 21, ..., 100).

RealDigits[N[100^(1/100), 100]][[1]] (* Vincenzo Librandi, Mar 23 2013 *)

sqrtn(100,100) \\ Charles R Greathouse IV, Apr 15 2014

cp's OEIS Frontend

A011439 Decimal expansion of 20th root of 20.

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A011440 Decimal expansion of 21st root of 21.

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A011519 Decimal expansion of 100th root of 100.

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