OFFSET
1,3
COMMENTS
Equivalent to the periodic continued fraction [r,2,r,2,...] where r=sqrt(2). For geometric interpretations of both continued fractions, see A190281 and A188635.
a(n) = A154748(n+1) for n > 0. - Georg Fischer, Oct 14 2018
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..5000
MATHEMATICA
ContinuedFraction[(1 + Sqrt[1 + Sqrt[2]])/Sqrt[2], 50] (* G. C. Greubel, Jan 31 2018 *)
PROG
(PARI) contfrac((1 + sqrt(1 + sqrt(2)))/sqrt(2)) \\ G. C. Greubel, Jan 31 2018
(Magma) ContinuedFraction((1 + Sqrt(1 + Sqrt(2)))/Sqrt(2)); // G. C. Greubel, Jan 31 2018
CROSSREFS
KEYWORD
nonn,cofr
AUTHOR
Clark Kimberling, May 07 2011
STATUS
approved