

A188659


Decimal expansion of (1+sqrt(26))/5.


3



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

1,2


COMMENTS

Decimal expansion of the shape of a (2/5)extension rectangle; see A188640 for definitions of shape and rextension rectangle. Briefly, shape=length/width, and an rextension rectangle is composed of two rectangles of shape 1/r when r<1.
The continued fraction of the constant is 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4...


LINKS

Table of n, a(n) for n=1..130.


EXAMPLE

1.219803902718556966005644821804556397912754189219919281516994...


MATHEMATICA

RealDigits[(1 + Sqrt[26])/5, 10, 111][[1]] (* Robert G. Wilson v, Aug 18 2011 *)


CROSSREFS

Cf. A188640, A188658, A188729, A188730, A010481.
Sequence in context: A021459 A133169 A133175 * A042977 A198106 A243261
Adjacent sequences: A188656 A188657 A188658 * A188660 A188661 A188662


KEYWORD

nonn,cons


AUTHOR

Clark Kimberling, Apr 09 2011


STATUS

approved



