A064719 A Beatty sequence for 3^i + 3^-i + 1.

1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126

Offset: 1

Author

Robert G. Wilson v, Oct 13 2001

Keywords

• easy
• nonn

Comments

3^i + 3^-i + 1 ~= 1.90966484565321951005513028719008497... ~= 21/11.

Links

• Harry J. Smith, Table of n, a(n) for n = 1..2000

Crossrefs

Cf. A064720.

Cf. A059547. - R. J. Mathar, Oct 02 2008

Programs

Mathematica

a = Chop[ N[ 3^I + 3^-I +1, 36], 10^-40]; Table[ Floor[n*a], {n, 1, 75} ]

PARI

{ default(realprecision, 100); b=real(3^I + 3^-I) + 1; for (n = 1, 2000, write("b064719.txt", n, " ", floor(n*b)) ) } \\ Harry J. Smith, Sep 23 2009