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A145226
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a(n) = numerator of constant lambda(n) involved in a recurrence for the Atkin polynomials A_k(j).
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1
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720, 546, 374, 475, 2001, 2294, 410, 903, 2491, 1342, 4602, 4891, 5467, 40290, 14774, 8827, 28785, 22454, 24182, 8349, 425, 4826, 107682, 20155, 21307, 142242, 49910, 27547, 86673, 12670, 13246, 108273, 37627, 81590, 36366, 6541, 47515, 306402, 105782, 11327
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| M. Kaneko and D. Zagier, Supersingular j-invariants, hypergeometric series and Atkin's orthogonal polynomials, pp. 97-126 of D. A. Buell and J. T. Teitelbaum, eds., Computational Perspectives on Number Theory, Amer. Math. Soc., 1998.
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FORMULA
| For formula see Maple code.
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EXAMPLE
| 720, 546, 374, 475, 2001/5, 2294/5, 410, 903/2, 2491/6, 1342/3, 4602/11, 4891/11, ...
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MAPLE
| lambda:=proc(n) if n=1 then 720 else 12*(6+(-1)^n/(n-1))*(6+(-1)^n/n); fi; end;
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CROSSREFS
| Cf. A145227.
Sequence in context: A101997 A139195 A167984 * A056467 A056457 A068351
Adjacent sequences: A145223 A145224 A145225 * A145227 A145228 A145229
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KEYWORD
| nonn,frac
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Feb 28 2009
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