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Search: id:A071950
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| A071950 |
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Triangle read by rows of numbers of paths in a lattice satisfying certain conditions. |
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+0
1
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| 1, 1, 1, 2, 2, 5, 1, 5, 12, 3, 14, 31
(list; graph; listen)
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OFFSET
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0,4
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REFERENCES
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D. Merlini, D. G. Rogers, R. Sprugnoli and M. C. Verri, On some alternative characterizations of Riordan arrays, Canad J. Math., 49 (1997), 301-320.
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LINKS
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D. Merlini, D. G. Rogers, R. Sprugnoli and M. C. Verri, On some alternative characterizations of Riordan arrays, Canad J. Math., 49 (1997), 301-320.
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EXAMPLE
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1; 1; 1,2; 2,5; 1,5,12; 3,14,31; ...
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CROSSREFS
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Sequence in context: A079301 A079300 A128932 this_sequence A068762 A021448 A108053
Adjacent sequences: A071947 A071948 A071949 this_sequence A071951 A071952 A071953
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KEYWORD
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nonn,easy,tabf,more
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AUTHOR
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njas, Jun 15 2002
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