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Series expansion at x=0:

-1\/2-1\/2 x log(2 pi)+1\/48 x^2 (24 gamma_1+12 gamma^2-pi^2-12 log^2(2)-12 log^2(pi)-24 log(2) log(pi))+1\/48 x^3 (24 gamma gamma_1+12 gamma_2+24 gamma_1 log(2 pi)-8 zeta(3)+8 gamma^3-4 log^3(2 pi)+12 gamma^2 log(2 pi)-pi^2 log(2 pi))+1\/24 zeta^(4)(0) x^4+1\/120 zeta^(5)(0) x^5+O(x^6)


Series expansion at x=∞:

2^(-x)+3^(-x)+4^(-x)+5^(-x)+6^(-x)+7^(-x)+8^(-x)+9^(-x)+10^(-x)+11^(-x)+12^(-x)+1

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