|
|
A279679
|
|
Irregular triangle read by rows: possible numbers of diagonals of an n-edged convex polyhedron.
|
|
2
|
|
|
0, 0, 0, 1, 0, 1, 1, 2, 0, 2, 3, 4, 2, 3, 4, 5, 0, 3, 4, 5, 6, 7, 3, 4, 5, 6, 7, 8, 9, 10, 0, 4, 6, 7, 8, 9, 10, 11, 12, 13, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 0, 5, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
6,8
|
|
COMMENTS
|
The beginning of the irregular triangle is:
6 | 0;
7 | -
8 | 0;
9 | 0, 1;
10 | 0, 1;
11 | 1, 2;
12 | 0, 2, 3, 4;
13 | 2, 3, 4, 5;
14 | 0, 3, 4, 5, 6, 7;
15 | 3, 4, 5, 6, 7, 8, 9, 10;
16 | 0, 4, 6, 7, 8, 9, 10, 11, 12, 13;
17 | 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16;
18 | 0, 5, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20;
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,tabf
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|