|
Search: id:A159926
|
|
|
| A159926 |
|
The sum of all terms in row 1 through m of triangle A159924. |
|
+0
3
|
|
| 1, 4, 16, 77, 447, 3053, 23978, 212750, 2103523, 22926004, 273008526, 3526184835, 49093579165, 732877502641, 11676946463092, 197775212369924, 3548276876195541, 67219485435345356, 1340841431830711580
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
COMMENT
|
A159926(m) - A159926(m-1) = A159925(m), for m >= 2. A159925 contains the row-sums of triangle A159924.
|
|
MAPLE
|
A159924 := proc(n, m) option remember ; local s; if n = m then 1; else s := add(add(procname(r, c), c=1..r), r=1..n-1) ; procname(n-1, m)+s ; fi; end: A159925 := proc(n) local m; add( A159924(n, m), m=1..n) ; end: A159926 := proc(n) add( A159925(k), k=1..n) ; end: seq(A159926(n), n=1..40) ; [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 29 2009]
|
|
CROSSREFS
|
A159924, A159925
Sequence in context: A094559 A049426 A057725 this_sequence A020051 A020006 A138294
Adjacent sequences: A159923 A159924 A159925 this_sequence A159927 A159928 A159929
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Apr 26 2009
|
|
EXTENSIONS
|
More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 29 2009
|
|
|
Search completed in 0.002 seconds
|
