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A104713
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Triangle T(n,k) = binomial(n,k), read by rows, 3 <= k <=n .
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2
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1, 4, 1, 10, 5, 1, 20, 15, 6, 1, 35, 35, 21, 7, 1, 56, 70, 56, 28, 8, 1, 84, 126, 126, 84, 36, 9, 1, 120, 210, 252, 210, 120, 45, 10, 1, 165, 330, 462, 462, 330, 165, 55, 11, 1, 220, 495, 792, 924, 792, 495, 220, 66, 12, 1, 286, 715, 1287, 1716
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 3,2
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FORMULA
| T(n,k) = A007318(n,k) for n>=3, 3<=k<=n.
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EXAMPLE
| First few rows of the triangle are:
1;
4, 1;
10, 5, 1;
20, 15, 6, 1;
35, 35, 21, 7, 1;
56, 70, 56, 28, 8, 1;
...
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MAPLE
| A104713 := proc(n, k)
binomial(n, k) ;
end proc;
seq(seq( A104713(n, k), k=3..n), n=3..16) ; # R. J. Mathar, Oct 29 2011
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CROSSREFS
| Cf. A007318, A104712, A002662 (row sums).
Sequence in context: A158824 A039806 A030320 * A185945 A186368 A185676
Adjacent sequences: A104710 A104711 A104712 * A104714 A104715 A104716
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KEYWORD
| nonn,tabl,easy
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Mar 19 2005
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