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Search: id:A081854
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| A081854 |
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(8*n-3)*(4*n-1)*(8*n^2-5*n+1). |
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+0
2
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| 3, 60, 2093, 13398, 47415, 123728, 268065, 512298, 894443, 1458660, 2255253, 3340670, 4777503, 6634488, 8986505, 11914578, 15505875, 19853708, 25057533, 31222950, 38461703, 46891680, 56636913, 67827578, 80599995, 95096628, 111466085, 129863118, 150448623
(list; graph; listen)
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OFFSET
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0,1
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LINKS
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J. C. Lagarias and N. J. A. Sloane, Approximate squaring (pdf, ps), Experimental Math., 13 (2004), 113-128.
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FORMULA
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G.f.: (60 + 1793*x + 3533*x^2 + 755*x^3 + 3*x^4)/(1-x)^5.
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CROSSREFS
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Value of A081853 when started at b(0) with 2*b(0) == 5 (mod 8).
Sequence in context: A065889 A001084 A137150 this_sequence A085990 A036770 A006821
Adjacent sequences: A081851 A081852 A081853 this_sequence A081855 A081856 A081857
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Apr 13 2003
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