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A300328
Triangle read by rows: row n gives the number of solutions to +-1 +- 2 +- 3 +- ... +- n == k (mod n).
5
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
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
KEYWORD
nonn,tabl
AUTHOR
Seiichi Manyama, Mar 03 2018
STATUS
approved