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A132200
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Numbers in (4,4)-Pascal triangle .
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0
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1, 4, 4, 4, 8, 4, 4, 12, 12, 4, 4, 16, 24, 16, 4, 4, 20, 40, 40, 20, 4, 4, 24, 60, 80, 60, 24, 4, 4, 28, 84, 140, 140, 84, 28, 4, 4, 32, 112, 224, 280, 224, 112, 32, 4, 4, 36, 144, 336, 504, 504, 336, 144, 36, 4, 4, 40, 180, 480, 840, 1008, 840, 480, 180, 40, 4
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| This triangle belongs to the family of (x,y)-Pascal triangles ; other triangles arise by choosing different values for (x,y): (1,1) -> A007318 ; (1,0) -> A071919 ; (3,2) -> A029618 ; (2,2) -> A134058 ; (-1,1) -> A112467 ; (0,1) -> A097805 ; (5,5) -> A135089 ; etc..
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FORMULA
| T(n,k)=4*binomial(n,k), n>0 ; T(0,0)=1 .
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EXAMPLE
| Triangle begins:
1;
4, 4;
4, 8, 4;
4, 12, 12, 4;
4, 16, 24, 16, 4;
4, 20, 40, 40, 20, 4 ;...
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CROSSREFS
| Sequence in context: A010658 A128939 A105352 * A110757 A167184 A085071
Adjacent sequences: A132197 A132198 A132199 * A132201 A132202 A132203
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KEYWORD
| nonn,tabl
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AUTHOR
| Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 19 2007
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