A064718 A Beatty sequence for 2^i + 2^-i where i = sqrt(-1).

2, 5, 8, 11, 14, 17, 19, 22, 25, 28, 31, 34, 37, 39, 42, 45, 48, 51, 54, 57, 59, 62, 65, 68, 71, 74, 77, 79, 82, 85, 88, 91, 94, 97, 99, 102, 105, 108, 111, 114, 117, 119, 122, 125, 128, 131, 134, 137, 139, 142, 145, 148, 151, 154, 157, 159, 162, 165, 168, 171, 174

Offset

1,1

Comments

2^i + 2^-i ~= 1.53847780272794425315665998732254140... ~= 20/13.

Links

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

Mathematica

a = Chop[ N[ 2^I + 2^-I, 36], 10^-40]; Table[ Floor[n*a/(a-1)], {n, 1, 75} ]

Prog

(PARI) { default(realprecision, 100); b=real(2^I + 2^-I); b=b/(b - 1); for (n = 1, 2000, write("b064718.txt", n, " ", floor(n*b)) ) } \\ Harry J. Smith, Sep 23 2009

Crossrefs

Cf. A064717.

Sequence in context: A140099 A276385 A109232 * A190336 A276889 A276877

Adjacent sequences: A064715 A064716 A064717 * A064719 A064720 A064721

Keyword

easy,nonn

Author

Robert G. Wilson v, Oct 13 2001

Status

approved