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A082411 Second-order linear recurrence sequence with a(n) = a(n-1) + a(n-2). 3
407389224418, 76343678551, 483732902969, 560076581520, 1043809484489, 1603886066009, 2647695550498, 4251581616507, 6899277167005, 11150858783512, 18050135950517, 29200994734029, 47251130684546, 76452125418575 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

a(0) = 407389224418, a(1) = 76343678551. This is a second-order linear recurrence sequence with a(0) and a(1) coprime that does not contain any primes. It was found by John Nicol in 1999.

REFERENCES

R. L. Graham, Math. Mag. 37, 1964, pp. 322-324.

D. E. Knuth, Math. Mag. 63, 1990, pp. 21-25.

H. S. Wilf, Letters to the Editor, Math. Mag. 63, 1990.

LINKS

Tanya Khovanova, Recursive Sequences

J. W. Nicol, A Fibonacci-like sequence of composite numbers

CROSSREFS

Cf. A000032 (Lucas numbers), A000045 (Fibonacci numbers), A083103, A083104, A083105, A083216.

Sequence in context: A172714 A080132 A080122 * A113952 A104303 A105302

Adjacent sequences:  A082408 A082409 A082410 * A082412 A082413 A082414

KEYWORD

nonn

AUTHOR

Harry J. Smith (hjsmithh(AT)sbcglobal.net), Apr 23 2003

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Last modified February 12 02:53 EST 2012. Contains 205360 sequences.