cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A050939 Numbers that are not the sum of consecutive Fibonacci numbers.

Original entry on oeis.org

9, 14, 15, 17, 22, 23, 24, 25, 27, 28, 30, 35, 36, 37, 38, 39, 40, 41, 43, 44, 45, 46, 48, 49, 51, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 69, 70, 71, 72, 73, 74, 75, 77, 78, 79, 80, 82, 83, 85, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101
Offset: 1

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Author

N. J. A. Sloane, Jan 02 2000

Keywords

Comments

From Clark Kimberling, Dec 16 2009: (Start)
(1) This is the ordered sequence of positive numbers that are not the difference between two Fibonacci numbers; see A007298 for a proof.
(2) Let s=(1,2,1,4,2,1,7,4,2,1,12,7,4,2,1,...) be the lengths of runs of consecutive numbers missing from A050939. Is s=A104582? (End)

Crossrefs

Cf. A007298, A204922, A204924.

Programs

  • Mathematica
    (See A204924, which generates an ordered list of differences of Fibonacci numbers, as in A204922.)
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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