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.

Showing 1-3 of 3 results.

A169693 A169690 union A169691.

Original entry on oeis.org

1, 2, 3, 4, 5, 7, 8, 11, 12, 13, 18, 20, 21, 29, 32, 33, 34, 47, 52, 54, 55, 76, 84, 87, 88, 89, 123, 136, 141, 143, 144, 199, 220, 228, 231, 232, 233, 322, 356, 369, 374, 376, 377, 521, 576, 597, 605, 608, 609, 610, 843, 932, 966, 979, 984, 986, 987, 1364, 1508, 1563, 1584
Offset: 1

Views

Author

N. J. A. Sloane, Apr 14 2010

Keywords

A169692 Numbers that are in neither A169690 nor A169691.

Original entry on oeis.org

6, 9, 10, 14, 15, 16, 17, 19, 22, 23, 24, 25, 26, 27, 28, 30, 31, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 53, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 77, 78, 79, 80, 81, 82, 83, 85, 86, 90, 91, 92, 93, 94, 95, 96, 97, 98
Offset: 1

Views

Author

N. J. A. Sloane, Apr 14 2010

Keywords

Crossrefs

A169690 Let S be the sequence Fibonacci(2n), n>0 (cf. A001906); sequence lists the differences S(j)-S(i) for i

Original entry on oeis.org

2, 5, 7, 13, 18, 20, 34, 47, 52, 54, 89, 123, 136, 141, 143, 233, 322, 356, 369, 374, 376, 610, 843, 932, 966, 979, 984, 986, 1597, 2207, 2440, 2529, 2563, 2576, 2581, 2583, 4181, 5778, 6388, 6621, 6710, 6744, 6757, 6762, 6764, 10946, 15127, 16724, 17334, 17567
Offset: 1

Views

Author

N. J. A. Sloane, Apr 14 2010

Keywords

Comments

The sequences S and T (see A169691) are a pair of sequences with the property that the differences between the terms of S are disjoint from the differences between the terms of T, thus answering a question posed by S. W. Golomb.

Crossrefs

Programs

  • Mathematica
    nn=30;With[{fib2=Fibonacci[Range[2,nn,2]]},Union[Flatten[Table[ fib2[[n]]- Take[ fib2, n-1],{n,nn/2}]]]] (* Harvey P. Dale, Jun 18 2012 *)
Showing 1-3 of 3 results.