OFFSET
0,1
LINKS
Harry J. Smith, Table of n, a(n) for n = 0..20000
G. Xiao, Contfrac
Index entries for linear recurrences with constant coefficients, signature (0, 1).
EXAMPLE
9.4868329805051379959966806... = 9 + 1/(2 + 1/(18 + 1/(2 + 1/(18 + ...)))). - Harry J. Smith, Jun 11 2009
MAPLE
Digits := 100: convert(evalf(sqrt(N)), confrac, 90, 'cvgts'):
MATHEMATICA
ContinuedFraction[Sqrt[90], 300] (* Vladimir Joseph Stephan Orlovsky, Mar 10 2011 *)
PadRight[{9}, 120, {18, 2}] (* Harvey P. Dale, Jun 13 2017 *)
PROG
(PARI) { allocatemem(932245000); default(realprecision, 32000); x=contfrac(sqrt(90)); for (n=0, 20000, write("b040080.txt", n, " ", x[n+1])); } \\ Harry J. Smith, Jun 11 2009
(PARI) a(n) = if (!n, 9, if (n % 2, 2, 18)); \\ Michel Marcus, Jan 03 2016
CROSSREFS
KEYWORD
nonn,cofr,easy
AUTHOR
STATUS
approved