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A159925
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Row sums of triangle A159924.
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3
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1, 3, 12, 61, 370, 2606, 20925, 188772, 1890773, 20822481, 250082522, 3253176309, 45567394330, 683783923476, 10944068960451, 186098265906832, 3350501663825617, 63671208559149815, 1273621946395366224
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| The sum of all terms in rows 1 through m of triangle A159924 is A159926(m). A159926(m) - A159926(m-1) = A159925(m), for m >= 2.
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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: seq(A159925(n), n=1..40) ; [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 29 2009]
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CROSSREFS
| A159924, A159926
Sequence in context: A192479 A161799 A182970 * A121694 A158691 A038171
Adjacent sequences: A159922 A159923 A159924 * A159926 A159927 A159928
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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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