|
| |
|
|
A144625
|
|
List of triples (i,j,k) (i>=0, j>=0, k>= 0) in canonical order used to convert an infinite tetrahedron of numbers to a linear sequence.
|
|
5
| |
|
|
0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 2, 0, 0, 1, 1, 0, 0, 2, 0, 1, 0, 1, 0, 1, 1, 0, 0, 2, 3, 0, 0, 2, 1, 0, 1, 2, 0, 0, 3, 0, 2, 0, 1, 1, 1, 1, 0, 2, 1, 1, 0, 2, 0, 1, 2, 0, 0, 3, 4, 0, 0, 3, 1, 0, 2, 2, 0, 1, 3, 0, 0, 4, 0, 3, 0, 1, 2, 1, 1, 1, 2, 1, 0, 3, 1, 2, 0, 2, 1, 1, 2, 0, 2, 2, 1, 0, 3
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,13
|
|
|
COMMENTS
| The triples are sorted first according to their sum, then by the value of k, then by the value of j.
|
|
|
LINKS
| N. J. A. Sloane, The 6545 triples with i+j+k <= 32
|
|
|
EXAMPLE
| i j k
-----
0 0 0
1 0 0
0 1 0
0 0 1
2 0 0
1 1 0
0 2 0
1 0 1
0 1 1
0 0 2
3 0 0
2 1 0
1 2 0
0 3 0
2 0 1
1 1 1
0 2 1
1 0 2
0 1 2
0 0 3
4 0 0
3 1 0
2 2 0
1 3 0
0 4 0
3 0 1
2 1 1
1 2 1
0 3 1
2 0 2
1 1 2
0 2 2
1 0 3
0 1 3
0 0 4
...
|
|
|
MAPLE
| for n from 0 to 7 do
for k from 0 to n do
for j from 0 to n do
for i from 0 to n do
if i+j+k=n then lprint(i, j, k); fi;
od: od: od: od:
|
|
|
CROSSREFS
| Cf. A144627-A144629 for the individual columns.
Sequence in context: A124762 A057558 A159708 * A025442 A128582 A101606
Adjacent sequences: A144622 A144623 A144624 * A144626 A144627 A144628
|
|
|
KEYWORD
| nonn,tabf
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jan 18 2009
|
| |
|
|
