OFFSET
0,2
COMMENTS
The Hankel transform (see A001906 for definition) of this sequence forms the sequence A047656(n+1)= [1,3,27,729,59049,14348907,...] . - Philippe Deléham, Aug 29 2006
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14753497736, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
FORMULA
The Hankel transform (see A001906 for definition) of this sequence forms the sequence A047656(n+1)= [1,3,27,729,59049,14348907,...]. - Philippe Deléham, Aug 29 2006
a(n) = 14753497736*a(n-19) - a(n-38) for n > 37. - Vincenzo Librandi, Jan 31 2014
MATHEMATICA
Denominator[Convergents[Sqrt[977], 40]] (* Harvey P. Dale, May 09 2012 *)
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
STATUS
approved