A179093 Variant of Sylvester's sequence: a(n + 1) = a(n)^2 - a(n) + 1, with a(1) = 17

17, 273, 74257, 5514027793, 30404502496462423057, 924433772057389715967338233131182802193, 854577798920253967214683802805361134256432824758816469437971879296076582807057

Offset

1,1

References

Mohammad K. Azarian, Sylvester's Sequence and the Infinite Egyptian Fraction Decomposition of 1, Problem 958, College Mathematics Journal, Vol. 42, No. 4, September 2011, p. 330. Solution published in Vol. 43, No. 4, September 2012, pp. 340-342

Links

Table of n, a(n) for n=1..7.

Markus Tervooren, Factorizations of Silvester/Euclid sequence 17

Mathematica

NestList[#^2-#+1&, 17, 10] (* Harvey P. Dale, Aug 16 2012 *)

Crossrefs

Cf. A144779, A144780, A144781, A144782, A144783, A144784, A144785

Sequence in context: A170736 A131865 A298373 * A029811 A113076 A159503

Adjacent sequences: A179090 A179091 A179092 * A179094 A179095 A179096

Keyword

nonn

Author

Ivan Panchenko, Jun 29 2010

Status

approved