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A022281
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a(n) = n*(23*n + 1)/2.
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4
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0, 12, 47, 105, 186, 290, 417, 567, 740, 936, 1155, 1397, 1662, 1950, 2261, 2595, 2952, 3332, 3735, 4161, 4610, 5082, 5577, 6095, 6636, 7200, 7787, 8397, 9030, 9686, 10365, 11067, 11792, 12540, 13311
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OFFSET
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0,2
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LINKS
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FORMULA
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MATHEMATICA
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Table[n (23 n + 1)/2, {n, 0, 40}] (* or *) LinearRecurrence[{3, -3, 1}, {0, 12, 47}, 40] (* Harvey P. Dale, Aug 16 2016 *)
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PROG
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CROSSREFS
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Cf. similar sequences listed in A022289.
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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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