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A165903 (a(n-1)^2+a(n-2)^2+a(n-1)*a(n-2))/a(n-3) with three initial ones 0
1, 1, 1, 3, 13, 217, 16693, 21717363, 2175145909081, 283430597537694797281, 3699017428454717709381715649628841, 6290488320295607125006566146327310005599469877825552723 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..11.

PROG

(PARI) a(n)=if(n<3, 1, (a(n-1)^2+a(n-2)^2+a(n-1)*a(n-2))/a(n-3))

CROSSREFS

Cf. A064098, A072882, A165896.

Sequence in context: A145503 A112093 A085010 * A100441 A036680 A111431

Adjacent sequences:  A165900 A165901 A165902 * A165904 A165905 A165906

KEYWORD

nonn

AUTHOR

Jaume Oliver Lafont, Sep 29 2009

EXTENSIONS

"frac" keyword removed. - Jaume Oliver Lafont, Oct 13 2009

STATUS

approved

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Last modified May 23 10:11 EDT 2013. Contains 225587 sequences.