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Search: id:A050174
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| A050174 |
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T(n,k)=S(n,k,k-2), 1<=k<=n-2, n >= 3, array S as in A050157. |
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1
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| 1, 2, 2, 3, 5, 5, 4, 9, 14, 9, 5, 14, 28, 28, 14, 6, 20, 48, 62, 48, 20, 7, 27, 75, 117, 117, 75, 27, 8, 35, 110, 200, 242, 200, 110, 35, 9, 44, 154, 319, 451, 451, 319, 154, 44, 10, 54, 208, 483, 780, 912, 780, 483, 208, 54, 11, 65, 273, 702, 1274
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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S(n,k,k)=C(n,k) for 1<=k<=n, n >= 1; cf. Pascal's triangle, A007318.
S(n,k,k-1), 1<=k<=n-1, n >= 2 is given by A014430.
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EXAMPLE
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Rows: {1}; {2,2}; {3,5,5}; ...
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CROSSREFS
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Sequence in context: A117267 A086363 A139171 this_sequence A115126 A055769 A162217
Adjacent sequences: A050171 A050172 A050173 this_sequence A050175 A050176 A050177
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KEYWORD
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nonn,tabl
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu)
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