A155183 Decimal expansion of log_4 (20).

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

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Index entries for transcendental numbers

Formula

Equals 1/2+ A154155 = 1 + A153201. - R. J. Mathar, May 25 2023

Example

2.1609640474436811739351597147446950879324156965122903060273...

Mathematica

RealDigits[Log[4, 20], 10, 100][[1]] (* Vincenzo Librandi, Aug 30 2013 *)

Crossrefs

Cf. decimal expansion of log_4(m): A094148 (m=3), A153201 (m=5), A153460 (m=6), A153615 (m=7), A154155 (m=10), A154176 (m=11), A154197 (m=12), A154224 (m=13), A154464 (m=14), A154543 (m=15), A154849 (m=17), A154909 (m=18), A155004 (m=19), this sequence, A155545 (m=21), A155695 (m=22), A155818 (m=23), A155936 (m=24).

Sequence in context: A187784 A370901 A198812 * A211173 A163553 A078503

Adjacent sequences: A155180 A155181 A155182 * A155184 A155185 A155186

Keyword

nonn,cons

Author

N. J. A. Sloane, Oct 30 2009

Status

approved