1,1

Let c1 and c2 be the constants at A195692 and A195694; then c1+c2 = Pi.

Table of n, a(n) for n=1..100.

arccos(-1/r) = 2.2370357592874118743353265876175441...

(See A195692.)

RealDigits[ArcCos[-1/GoldenRatio], 10, 120][[1]] (* Harvey P. Dale, Jan 15 2012 *)

Cf. A001622, A175288, A195692, A195693.

Sequence in context: A275487 A096100 A260161 * A021451 A210188 A183442

Adjacent sequences: A195691 A195692 A195693 * A195695 A195696 A195697

nonn,cons

Clark Kimberling, Sep 22 2011

approved