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.

A287321 Positions of 0 in A287320.

Original entry on oeis.org

1, 2, 6, 7, 8, 12, 16, 20, 22, 24, 25, 26, 30, 31, 32, 36, 37, 38, 42, 46, 50, 52, 54, 55, 56, 60, 64, 68, 70, 72, 73, 74, 78, 82, 86, 88, 90, 91, 92, 96, 98, 100, 101, 102, 106, 108, 110, 111, 112, 116, 117, 118, 122, 123, 124, 128, 132, 136, 138, 140, 141
Offset: 1

Views

Author

Clark Kimberling, May 23 2017

Keywords

Links

Crossrefs

Cf. A287320, A287322, A287323.

Programs

  • Mathematica
    s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {2, 2}, 2 -> 0}] &, {0}, 9] (* A287175 *)
Flatten[Position[s, 0]] (* A287321 *)
Flatten[Position[s, 1]] (* A287322 *)
Flatten[Position[s, 2]] (* A287323 *)

A287322 Positions of 1 in A287320.

Original entry on oeis.org

5, 11, 15, 19, 21, 23, 29, 35, 41, 45, 49, 51, 53, 59, 63, 67, 69, 71, 77, 81, 85, 87, 89, 95, 97, 99, 105, 107, 109, 115, 121, 127, 131, 135, 137, 139, 145, 151, 157, 161, 165, 167, 169, 175, 181, 187, 191, 195, 197, 199, 205, 209, 213, 215, 217, 223, 227
Offset: 1

Views

Author

Clark Kimberling, May 23 2017

Keywords

Links

Crossrefs

Cf. A287320, A287321, A287323.

Programs

  • Mathematica
    s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {2, 2}, 2 -> 0}] &, {0}, 9] (* A287175 *)
Flatten[Position[s, 0]] (* A287321 *)
Flatten[Position[s, 1]] (* A287322 *)
Flatten[Position[s, 2]] (* A287323 *)

A287323 Positions of 2 in A287320.

Original entry on oeis.org

3, 4, 9, 10, 13, 14, 17, 18, 27, 28, 33, 34, 39, 40, 43, 44, 47, 48, 57, 58, 61, 62, 65, 66, 75, 76, 79, 80, 83, 84, 93, 94, 103, 104, 113, 114, 119, 120, 125, 126, 129, 130, 133, 134, 143, 144, 149, 150, 155, 156, 159, 160, 163, 164, 173, 174, 179, 180, 185
Offset: 1

Views

Author

Clark Kimberling, May 23 2017

Keywords

Links

Crossrefs

Cf. A287320, A287321, A287322.

Programs

  • Mathematica
    s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {2, 2}, 2 -> 0}] &, {0}, 9] (* A287175 *)
Flatten[Position[s, 0]] (* A287321 *)
Flatten[Position[s, 1]] (* A287322 *)
Flatten[Position[s, 2]] (* A287323 *)
Showing 1-3 of 3 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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