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A029831
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Eisenstein series E_24(q) (alternate convention E_12(q)), multiplied by 236364091.
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18
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236364091, 131040, 1099243323360, 12336522153621120, 9221121336284413920, 1562118530273437631040, 103486260766565509822080, 3586400651444203277717760, 77352372210526124884754400, 1161399411211600265764157280
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OFFSET
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0,1
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REFERENCES
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J.-P. Serre, Course in Arithmetic, Chap. VII, Section 4.
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LINKS
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FORMULA
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MATHEMATICA
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terms = 10;
E24[x_] = 236364091 + 131040*Sum[k^23*x^k/(1 - x^k), {k, 1, terms}];
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PROG
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(PARI) a(n)=if(n<1, 236364091*(n==0), 131040*sigma(n, 23))
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CROSSREFS
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Cf. A006352 (E_2), A004009 (E_4), A013973 (E_6), A008410 (E_8), A013974 (E_10), A029828 (691*E_12), A058550 (E_14), A029829 (3617*E_16), A279892 (43867*E_18), A029830 (174611*E_20), A279893 (77683*E_22), this sequence (236364091*E_24).
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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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