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A159926
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The sum of all terms in row 1 through m of triangle A159924.
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3
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1, 4, 16, 77, 447, 3053, 23978, 212750, 2103523, 22926004, 273008526, 3526184835, 49093579165, 732877502641, 11676946463092, 197775212369924, 3548276876195541, 67219485435345356, 1340841431830711580
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| A159926(m) - A159926(m-1) = A159925(m), for m >= 2. A159925 contains the row-sums of triangle A159924.
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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]
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CROSSREFS
| A159924, A159925
Sequence in context: A049426 A057725 A196192 * A020051 A020006 A204208
Adjacent sequences: A159923 A159924 A159925 * A159927 A159928 A159929
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KEYWORD
| nonn
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AUTHOR
| Leroy Quet, Apr 26 2009
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EXTENSIONS
| More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 29 2009
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