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A000381 Essentially the same as A001611.
(Formerly M0574 N0208)
3
2, 3, 4, 6, 9, 14, 22, 35, 56, 90, 145, 234, 378, 611, 988, 1598, 2585, 4182, 6766 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=0..18.

R. K. Guy and N. J. A. Sloane, Correspondence, 1988.

Simon Plouffe, Approximations de séries génératrices et quelques conjectures, Dissertation, Université du Québec à Montréal, 1992; arXiv:0911.4975 [math.NT], 2009.

Simon Plouffe, 1031 Generating Functions, Appendix to Thesis, Montreal, 1992

MAPLE

A000381:=-(-2+z+2*z**2)/(z-1)/(z**2+z-1); # [Simon Plouffe in his 1992 dissertation.]

CROSSREFS

Cf. A001611.

Sequence in context: A018140 A256969 A005579 * A350588 A001115 A173278

Adjacent sequences: A000378 A000379 A000380 * A000382 A000383 A000384

KEYWORD

dead

AUTHOR

N. J. A. Sloane, Apr 17 2015

STATUS

approved

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Last modified December 5 15:27 EST 2022. Contains 358588 sequences. (Running on oeis4.)