|
Search: id:A103516
|
|
|
| A103516 |
|
Triangle read by rows: count in a vee. |
|
+0
5
|
|
| 1, 2, 2, 3, 0, 3, 4, 0, 0, 4, 5, 0, 0, 0, 5, 6, 0, 0, 0, 0, 6, 7, 0, 0, 0, 0, 0, 7, 8, 0, 0, 0, 0, 0, 0, 8, 9, 0, 0, 0, 0, 0, 0, 0, 9, 10, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0
(list; table; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
Row sums are A103517, diagonal sums are A081556
|
|
FORMULA
|
Number triangle T(n, k)=if(k<=n, 0^(k(n-k))*(n+1), 0)
|
|
EXAMPLE
|
Rows begin {1}, {2,2}, {3,0,3}, {4,0,0,4}, {5,0,0,0,5},...
|
|
CROSSREFS
|
Sequence in context: A053761 A138067 A125093 this_sequence A129234 A127446 A046157
Adjacent sequences: A103513 A103514 A103515 this_sequence A103517 A103518 A103519
|
|
KEYWORD
|
easy,nonn,tabl
|
|
AUTHOR
|
Paul Barry (pbarry(AT)wit.ie), Feb 09 2005
|
|
|
Search completed in 0.002 seconds
|
