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Search: id:A114093
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| A114093 |
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Number of partitions of n into parts that are distinct mod 5. |
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+0
1
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| 1, 1, 2, 2, 3, 4, 4, 6, 6, 8, 10, 10, 13, 13, 18, 20, 20, 24, 24, 36, 35, 35, 40, 40, 66, 56, 56, 62, 62, 113, 84, 84, 91, 91, 183, 120, 120, 128, 128, 283, 165, 165, 174, 174, 421, 220, 220, 230, 230, 606
(list; graph; listen)
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OFFSET
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1,3
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EXAMPLE
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a(5)=3 because there are 3 such partition of 5: {5}, {2,3}, {1,4}.
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MATHEMATICA
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<< DiscreteMath`Combinatorica`; np[n_]:= Length@Select[Mod[ #, 5]& /@ Partitions[n], (Length@# != Length@Union@#)&]; lst = Array[np, 50]
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CROSSREFS
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Sequence in context: A113967 A126246 A029936 this_sequence A077768 A143038 A029040
Adjacent sequences: A114090 A114091 A114092 this_sequence A114094 A114095 A114096
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KEYWORD
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nonn
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AUTHOR
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Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006
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