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.

A221026 Sum of neighbor maps: log base 2 of the number of nX6 binary arrays indicating the locations of corresponding elements equal to the sum mod 2 of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nX6 array.

Original entry on oeis.org

6, 11, 17, 21, 30, 33, 42, 46, 54, 60, 66, 71, 75, 84, 90, 94, 100, 106, 113, 118, 125, 131, 138, 144, 150, 152, 160, 167, 173, 177, 183, 191, 197, 202, 206, 216, 222, 228, 233, 239, 244, 251, 256, 262, 268, 276, 282, 285, 293, 300, 306, 312, 316, 324, 327, 336, 339, 347
Offset: 1

Views

Author

R. H. Hardin Dec 29 2012

Keywords

Comments

Column 6 of A221028

Examples

			Some solutions for n=3
..0..0..0..1..1..0....1..0..0..1..0..0....1..1..0..1..0..1....0..0..1..0..0..0
..0..0..1..0..0..1....0..0..0..0..1..1....0..1..0..1..1..0....0..1..0..1..0..0
..1..0..0..1..0..0....0..1..0..0..1..0....0..1..0..1..0..0....1..1..1..1..0..0

Links

A221025 Sum of neighbor maps: log base 2 of the number of n X n binary arrays indicating the locations of corresponding elements equal to the sum mod 2 of their horizontal, vertical and antidiagonal neighbors in a random 0..1 n X n array.

Original entry on oeis.org

1, 3, 7, 16, 24, 33, 45, 63, 81, 100
Offset: 1

Views

Author

R. H. Hardin Dec 29 2012

Keywords

Comments

Diagonal of A221028

Examples

			Some solutions for n=3
..0..1..0....0..0..0....1..1..0....1..0..1....1..1..1....0..1..0....1..0..1
..0..0..1....0..1..0....1..0..1....1..0..0....1..1..1....0..1..1....0..1..0
..0..0..0....0..0..0....0..1..1....0..1..1....1..1..1....0..0..0....0..0..1

A221027 Sum of neighbor maps: log base 2 of the number of nX7 binary arrays indicating the locations of corresponding elements equal to the sum mod 2 of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nX7 array.

Original entry on oeis.org

7, 13, 19, 27, 35, 42, 45, 53, 62, 69, 72, 83, 90, 95, 101, 112, 119, 125, 131, 139, 147, 154, 154, 168, 175, 181, 187, 195, 203, 210, 213
Offset: 1

Views

Author

R. H. Hardin Dec 29 2012

Keywords

Comments

Column 7 of A221028

Examples

			Some solutions for n=3
..0..0..0..1..1..0..1....0..0..0..1..0..1..1....0..1..1..0..1..0..0
..0..1..1..0..0..0..0....0..0..1..1..1..0..0....0..1..1..1..1..0..0
..0..0..0..1..1..0..0....1..0..1..0..0..1..0....0..0..0..0..0..1..1
Showing 1-3 of 3 results.

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

Content is available under The OEIS End-User License Agreement.