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Search: id:A158821
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| A158821 |
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Triangle read by rows: row n (n>=0) ends with 1, and for n>=1 begins with n; other entries are zero. |
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+0
7
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| 1, 1, 1, 2, 0, 1, 3, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 0, 1, 6, 0, 0, 0, 0, 0, 1, 7, 0, 0, 0, 0, 0, 0, 1, 8, 0, 0, 0, 0, 0, 0, 0, 1, 9, 0, 0, 0, 0, 0, 0, 0, 0, 1, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
(list; table; graph; listen)
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OFFSET
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0,4
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FORMULA
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T(n,k) = A145677(n,n-k-1). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 01 2009]
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EXAMPLE
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Triangle begins:
1
1, 1
2, 0, 1
3, 0, 0, 1
4, 0, 0, 0, 1
5, 0, 0, 0, 0, 1
6, 0, 0, 0, 0, 0, 1
7, 0, 0, 0, 0, 0, 0, 1
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CROSSREFS
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Sequence in context: A014511 A085855 A128132 this_sequence A127701 A004199 A062283
Adjacent sequences: A158818 A158819 A158820 this_sequence A158822 A158823 A158824
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KEYWORD
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nonn,tabl,easy
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Mar 30 2008
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 01 2009
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