A300328 Triangle read by rows: row n gives the number of solutions to +-1 +- 2 +- 3 +- ... +- n == k (mod n).

2, 0, 4, 4, 2, 2, 8, 0, 8, 0, 8, 6, 6, 6, 6, 0, 20, 0, 24, 0, 20, 20, 18, 18, 18, 18, 18, 18, 64, 0, 64, 0, 64, 0, 64, 0, 60, 56, 56, 58, 56, 56, 58, 56, 56, 0, 204, 0, 204, 0, 208, 0, 204, 0, 204, 188, 186, 186, 186, 186, 186, 186, 186, 186, 186, 186

Offset

1,1

Links

Seiichi Manyama, Rows n = 1..140, flattened

Example

First few rows are:
   2;
   0,  4;
   4,  2,  2;
   8,  0,  8,  0;
   8,  6,  6,  6,  6;
   0, 20,  0, 24,  0, 20;
  20, 18, 18, 18, 18, 18, 18;
  64,  0, 64,  0, 64,  0, 64, 0;

Crossrefs

Cf. A000079 (row sums), A300190, A300324, A300329.

Sequence in context: A219836 A004174 A348874 * A365382 A200291 A049797

Adjacent sequences: A300325 A300326 A300327 * A300329 A300330 A300331

Keyword

nonn,tabl

Author

Seiichi Manyama, Mar 03 2018

Status

approved