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A134637
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Triangle, T(n,k) = T(n-1,k) + T(n-1,k-1), 1<=k<=n; given borders consist of the Tetrahedral numbers.
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1
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1, 4, 4, 10, 8, 10, 20, 18, 18, 20, 35, 38, 36, 38, 35, 56, 73, 34, 74, 73, 56, 84, 129, 147, 148, 147, 129, 84, 120, 213, 276, 295, 295, 276, 213, 120
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Row sums = A134638: (1, 8, 28, 76, 182, 406,...).
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FORMULA
| Triangle, given borders = A000292, then apply Pascal's rule.
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EXAMPLE
| First few rows of the triangle are:
1;
4, 4;
10, 8, 10;
20, 18, 18, 20;
35, 38, 36, 38, 35;
56, 73, 74, 74, 73, 56;
...
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CROSSREFS
| Cf. A000292, A134638.
Sequence in context: A160723 A007426 A050348 * A078910 A196051 A140234
Adjacent sequences: A134634 A134635 A134636 * A134638 A134639 A134640
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 04 2007
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