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 1-4 of 4 results.

A265205 Number of ON (black) cells in the n-th iteration of the "Rule 73" elementary cellular automaton starting with a single ON (black) cell.

Original entry on oeis.org

1, 0, 3, 0, 7, 2, 5, 2, 9, 6, 5, 10, 13, 6, 11, 10, 15, 10, 19, 10, 23, 10, 17, 20, 19, 16, 25, 18, 19, 20, 25, 14, 37, 20, 27, 26, 35, 20, 37, 30, 41, 24, 33, 36, 39, 26, 45, 36, 37, 38, 41, 36, 49, 44, 29, 56, 39, 40, 57, 40, 43, 60, 39, 48, 55, 44, 45, 64
Offset: 0

Views

Author

Robert Price, Dec 04 2015

Keywords

References

  • S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.

Links

Crossrefs

Cf. A245549, A262448, A265122, A265156.

Programs

  • Mathematica
    rule = 73; rows = 30; Table[Total[Table[Take[CellularAutomaton[rule, {{1},0},rows-1,{All,All}][[k]], {rows-k+1, rows+k-1}], {k,1,rows}][[k]]], {k,1,rows}]

A265206 Total number of ON (black) cells after n iterations of the "Rule 73" elementary cellular automaton starting with a single ON (black) cell.

Original entry on oeis.org

1, 1, 4, 4, 11, 13, 18, 20, 29, 35, 40, 50, 63, 69, 80, 90, 105, 115, 134, 144, 167, 177, 194, 214, 233, 249, 274, 292, 311, 331, 356, 370, 407, 427, 454, 480, 515, 535, 572, 602, 643, 667, 700, 736, 775, 801, 846, 882, 919, 957, 998, 1034, 1083, 1127, 1156
Offset: 0

Views

Author

Robert Price, Dec 04 2015

Keywords

References

  • S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.

Links

Crossrefs

Cf. A245549, A262448, A265122, A265156, A265205.

Programs

  • Mathematica
    rule = 73; rows = 30; Table[Total[Take[Table[Total[Table[Take[CellularAutomaton[rule,{{1},0},rows-1,{All,All}][[k]],{rows-k+1,rows+k-1}],{k,1,rows}][[k]]],{k,1,rows}],k]],{k,1,rows}]

A265219 Number of OFF (white) cells in the n-th iteration of the "Rule 73" elementary cellular automaton starting with a single ON (black) cell.

Original entry on oeis.org

0, 3, 2, 7, 2, 9, 8, 13, 8, 13, 16, 13, 12, 21, 18, 21, 18, 25, 18, 29, 18, 33, 28, 27, 30, 35, 28, 37, 38, 39, 36, 49, 28, 47, 42, 45, 38, 55, 40, 49, 40, 59, 52, 51, 50, 65, 48, 59, 60, 61, 60, 67, 56, 63, 80, 55, 74, 75, 60, 79, 78, 63, 86, 79, 74, 87, 88
Offset: 0

Views

Author

Robert Price, Dec 05 2015

Keywords

References

  • S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.

Links

Crossrefs

Cf. A245549, A262448, A265122, A265156, A265205, A265206.

A265220 Total number of OFF (white) cells after n iterations of the "Rule 73" elementary cellular automaton starting with a single ON (black) cell.

Original entry on oeis.org

0, 3, 5, 12, 14, 23, 31, 44, 52, 65, 81, 94, 106, 127, 145, 166, 184, 209, 227, 256, 274, 307, 335, 362, 392, 427, 455, 492, 530, 569, 605, 654, 682, 729, 771, 816, 854, 909, 949, 998, 1038, 1097, 1149, 1200, 1250, 1315, 1363, 1422, 1482, 1543, 1603, 1670
Offset: 0

Views

Author

Robert Price, Dec 05 2015

Keywords

References

  • S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.

Links

Crossrefs

Cf. A245549, A262448, A265122, A265156, A265205, A265206, A265219.
Showing 1-4 of 4 results.

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

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