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A240059
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Number of partitions of n such that m(1) > m(3), where m = multiplicity.
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2
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0, 1, 1, 2, 2, 5, 6, 10, 12, 20, 25, 37, 46, 67, 84, 116, 145, 197, 246, 325, 404, 527, 653, 837, 1032, 1310, 1609, 2018, 2467, 3070, 3738, 4612, 5591, 6854, 8277, 10080, 12125, 14688, 17604, 21212, 25333, 30389, 36172, 43201, 51256, 60981, 72132, 85498
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OFFSET
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0,4
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LINKS
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FORMULA
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EXAMPLE
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a(6) counts these 6 partitions: 51, 411, 3111, 2211, 21111, 111111.
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MATHEMATICA
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z = 60; f[n_] := f[n] = IntegerPartitions[n]; t1 = Table[Count[f[n], p_ /; Count[p, 1] < Count[p, 3]], {n, 0, z}] (* A182714 *)
t2 = Table[Count[f[n], p_ /; Count[p, 1] <= Count[p, 3]], {n, 0, z}] (* A182714(n+3) *)
t3 = Table[Count[f[n], p_ /; Count[p, 1] == Count[p, 3]], {n, 0, z}] (* A240058 *)
t4 = Table[Count[f[n], p_ /; Count[p, 1] > Count[p, 3]], {n, 0, z}] (* A240059 *)
t5 = Table[Count[f[n], p_ /; Count[p, 1] >= Count[p, 3]], {n, 0, z}] (* A240059(n+1) *)
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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