A257672 Numbers of the form floor(r^i) + floor(s^j), where r = (1 + sqrt(5))/2, s = r^2, i >= 0, j >= 0.

2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 17, 18, 19, 21, 23, 28, 30, 31, 34, 35, 46, 47, 48, 50, 52, 57, 63, 75, 77, 78, 82, 92, 93, 122, 123, 124, 126, 128, 133, 139, 151, 168, 198, 200, 201, 205, 216, 244, 245, 321, 322, 323, 325, 327, 332, 338, 350, 367, 397, 443

Offset

1,1

Links

Table of n, a(n) for n=1..60.

Mathematica

r = GoldenRatio; s = r/(r - 1); Take[Union[Flatten[Table[Floor[r^i] + Floor[s^j], {i, 0, 100}, {j, 0, 100}]]], 100]

Crossrefs

Cf. A001622, A104457.

Cf. A257671.

Sequence in context: A335040 A270427 A270189 * A285314 A080544 A178878

Adjacent sequences: A257669 A257670 A257671 * A257673 A257674 A257675

Keyword

nonn,easy

Author

Clark Kimberling, May 03 2015

Status

approved