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Search: id:A152198
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| 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 4, 6, 4, 1, 1, 5, 10, 10, 5, 1, 1, 5, 10, 10, 5, 1, 1, 6, 15, 20, 15, 6, 1, 1, 6, 15, 20, 15, 6, 1, 1, 7, 21, 35, 35, 21, 7, 1, 1, 7, 21, 35, 35, 21, 7, 1, 1, 8, 28, 56, 70, 56, 28, 8, 1, 1, 8, 28, 56, 70, 56, 28, 8, 1
(list; graph; listen)
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OFFSET
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0,8
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COMMENT
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Eigensequence of the triangle = A051163: (1, 2, 5, 12, 30, 76,...)
Another version of A152815 . [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Dec 13 2008]
Row sums : A016116(n) ; Diagonal sums : A000931(n+5) . [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Dec 13 2008]
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FORMULA
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Triangle read by rows, Pascal's triangle rows repeated.
Equals inverse binomial transform of A133156 unsigned.
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EXAMPLE
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First few rows of the triangle =
1;
1;
1, 1;
1, 1;
1, 2, 1;
1, 2, 1;
1, 3, 3, 1;
1, 3, 3, 1;
1, 4, 6, 4, 1;
1, 4, 6, 4, 1;
1, 5, 10, 10, 5, 1;
1, 5, 10, 10, 5, 1;
...
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CROSSREFS
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A007318, A133156, A051163
Sequence in context: A161107 A161042 A029292 this_sequence A159255 A035693 A068696
Adjacent sequences: A152195 A152196 A152197 this_sequence A152199 A152200 A152201
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KEYWORD
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nonn,tabf
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 28 2008
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EXTENSIONS
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More terms from Philippe DELEHAM, Dec 14 2008
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