



3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12, 19, 18, 17, 16, 23, 22, 21, 20, 27, 26, 25, 24, 31, 30, 29, 28, 35, 34, 33, 32, 39, 38, 37, 36, 43, 42, 41, 40, 47, 46, 45, 44, 51, 50, 49, 48, 55, 54, 53, 52, 59, 58
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OFFSET

0,1


COMMENTS

The same as A120634 except for first 3 terms.  Pietro Battiston, Jan 19 2008


REFERENCES

E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982, see p. 60.
J. H. Conway, On Numbers and Games. Academic Press, NY, 1976, pp. 5153.


LINKS

Table of n, a(n) for n=0..57.
Index entries for sequences related to Nimsums


FORMULA

G.f.: (4x^4x^3x^2x+3)/((x1)^2*(x+1)*(x^2+1)).  Ralf Stephan, Nov 01 2003
a(n) = n + (1)^n + 2(1)^[n/2].  Mitchell Harris, Jan 10 2005


MATHEMATICA

CoefficientList[Series[(4x^4x^3x^2x+3)/((x1)^2(x+1) (x^2+1)), {x, 0, 70}], x] (* Harvey P. Dale, Mar 24 2011 *)


CROSSREFS

Sequence in context: A098825 A111460 A035327 * A204533 A259790 A246654
Adjacent sequences: A004441 A004442 A004443 * A004445 A004446 A004447


KEYWORD

nonn


AUTHOR

N. J. A. Sloane.


STATUS

approved



