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 A331122 Nearest integer to Integral_{x=0..n} x^x dx. 0
 0, 1, 3, 15, 114, 1242, 17129, 284714, 5526741, 122592633, 3057488913, 84665033543, 2576896828787, 85495426794698, 3070641026296061, 118685141706060740, 4911825483278949553, 216697390123422589527, 10151899714746097960699, 503310218588181014061292 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS The antiderivative of x^x cannot be described in terms of elementary functions. a(1)=1 is the rounding of A083648. LINKS Eric Weisstein's World of Mathematics, Sophomore's Dream EXAMPLE Integral_{X=0..4} x^x dx = 114.119062..., so a(4) = 114. Integral_{x=0..7} x^x dx = 284713.7347218579997..., so a(7) = 284714. PROG (PARI) for(k=0, 19, print1(round(intnum(x=0, k, x^x)), ", ")) \\ Hugo Pfoertner, Jan 18 2020 CROSSREFS Cf. A000312, A083648. Sequence in context: A123853 A166885 A082163 * A190629 A074596 A087806 Adjacent sequences:  A331119 A331120 A331121 * A331123 A331125 A331126 KEYWORD nonn AUTHOR Eliora Ben-Gurion, Jan 10 2020 STATUS approved

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Last modified February 18 04:48 EST 2020. Contains 332011 sequences. (Running on oeis4.)