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 A037164 Numerators of coefficients of Eisenstein series E_12(q) (or E_6(q) or E_24(q)). 1
 1, 65520, 134250480, 11606736960, 274945048560, 3199218815520, 23782204031040, 129554448266880, 563087459516400, 2056098632318640, 6555199353000480, 18693620658498240, 48705965462306880 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS First denominator is 1, rest are 691. REFERENCES R. C. Gunning, Lectures on Modular Forms. Princeton Univ. Press, Princeton, NJ, 1962, p. 53. N. Koblitz, Introduction to Elliptic Curves and Modular Forms, Springer-Verlag, 1984, see p. 111. H. D. Nguyen, D. Taggart, Mining the OEIS: Ten Experimental Conjectures, 2013; http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.391.2522&rep=rep1&type=pdf. Mentions this sequence. - From N. J. A. Sloane, Mar 16 2014 J.-P. Serre, Course in Arithmetic, Chap. VII, Section 4. LINKS MAPLE E := proc(k) local n, t1; t1 := 1-(2*k/bernoulli(k))*add(sigma[k-1](n)*q^n, n=1..60); series(t1, q, 60); end; E(12); MATHEMATICA terms = 13; E12[x_] = 1 - (24/BernoulliB[12])*Sum[k^11*x^k/(1 - x^k), {k, 1, terms}]; E12[x] + O[x]^terms // CoefficientList[#, x]& // Numerator (* Jean-François Alcover, Feb 27 2018 *) CROSSREFS Cf. A029828. Sequence in context: A083608 A102277 A013692 * A288990 A075964 A075969 Adjacent sequences:  A037161 A037162 A037163 * A037165 A037166 A037167 KEYWORD nonn,frac,easy AUTHOR STATUS approved

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Last modified September 18 20:19 EDT 2020. Contains 337173 sequences. (Running on oeis4.)