A259626 List of numbers L and L + 1, where L = A000032, the Lucas numbers, sorted into increasing order and duplicates removed.

1, 2, 3, 4, 5, 7, 8, 11, 12, 18, 19, 29, 30, 47, 48, 76, 77, 123, 124, 199, 200, 322, 323, 521, 522, 843, 844, 1364, 1365, 2207, 2208, 3571, 3572, 5778, 5779, 9349, 9350, 15127, 15128, 24476, 24477, 39603, 39604, 64079, 64080, 103682, 103683, 167761, 167762

Offset

1,2

Links

Clark Kimberling, Table of n, a(n) for n = 1..2000

Formula

G.f.: -((-1 - 2 x - x^2 + x^4 + x^5 + x^6 + x^7 + x^8)/((-1 + x) (1 + x) (-1 + x^2 + x^4)))

Mathematica

Union[#, # + 1] &[LucasL[Range[50]]]

Crossrefs

Cf. A000032, A258085, A259623, A259624, A259625, A259627.

Sequence in context: A180121 A331418 A062890 * A058586 A090467 A177202

Adjacent sequences: A259623 A259624 A259625 * A259627 A259628 A259629

Keyword

nonn,easy

Author

Clark Kimberling and Peter J. C. Moses, Jul 01 2015

Status

approved