|
Search: id:A080251
|
|
|
| A080251 |
|
Paired decomposition of tetrahedral numbers A000292 arranged as number triangle. |
|
+0
2
|
|
| 1, 2, 2, 3, 3, 4, 4, 4, 6, 6, 5, 5, 8, 8, 9, 6, 6, 10, 10, 12, 12, 7, 7, 12, 12, 15, 15, 16, 8, 8, 14, 14, 18, 18, 20, 20, 9, 9, 16, 16, 21, 21, 24, 24, 25, 10, 10, 18, 18, 24, 24, 28, 28, 30, 30, 11, 11, 20, 20, 27, 27, 32, 32, 35, 35, 36
(list; table; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
Used in construction of Stirling-like number triangle A080416.
|
|
EXAMPLE
|
Rows are {1}, {2,2}, {3,3,4}, {4,4,6,6}, {5,5,8,8,9}, ... Row sums are 1, 4, 10, 20, .... or C(n+3,3)=A000292.
|
|
CROSSREFS
|
Sequence in context: A103358 A063084 A127079 this_sequence A137791 A096125 A035100
Adjacent sequences: A080248 A080249 A080250 this_sequence A080252 A080253 A080254
|
|
KEYWORD
|
nonn,tabl
|
|
AUTHOR
|
Paul Barry (pbarry(AT)wit.ie), Feb 17 2003
|
|
|
Search completed in 0.002 seconds
|
