A060703 Negative values of 2*x*y^4 + x^2*y^3 - 2*x^3*y*2 - x^4*y - y^5 + 2*y for x,y >= 0.

23, 28, 56, 69, 84, 92, 119, 140, 161, 224, 237, 238, 253, 359, 364, 414, 474, 476, 588, 595, 667, 711, 796, 833, 839, 952, 1016, 1071, 1077, 1081, 1185, 1428, 1540, 1666, 1679, 1748, 1795, 1896, 1918, 2032, 2154, 2261, 2388, 2492, 2513, 2737, 2829

Offset

0,1

Comments

Positive values of the polynomial for x,y >= 0 are the Fibonacci numbers. See A000045. Ribenboim discusses the equation on page 193.

References

Ribenboim, P. The New Book of Prime Number Records. New York: Springer-Verlag, p. 193, 1996.

Links

Table of n, a(n) for n=0..46.

Example

For x=2, y=1, the value of the polynomial is -23, so 23 is in the sequence.

Crossrefs

Cf. A000045.

Sequence in context: A116224 A127495 A255220 * A061753 A166063 A231073

Adjacent sequences: A060700 A060701 A060702 * A060704 A060705 A060706

Keyword

nonn

Author

Jud McCranie, Apr 20 2001

Status

approved