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A032272
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Shifts left under "DIJ" (bracelet, indistinct, labeled) transform, with a(1)=2.
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2
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2, 2, 6, 26, 182, 1786, 22870, 359226, 6658038, 141860538, 3411462102, 91331548410, 2692998369270, 86698082609658, 3025579919280726, 113759391284411322, 4584343174947333366, 197110924461251852346, 9006669123611196569046, 435827319931153165710714
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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m = 20; A[_] = 0;
Do[A[x_] = Integrate[2 + (1/2)(A[x] + A[x]^2/2 - Log[1-A[x]]) + O[x]^m, x] // Normal, {m}];
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PROG
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(PARI) DIJ(p)={(p + p^2/2 - log(1-p))/2}
seq(n)={my(p=O(x)); for(i=1, n, p=intformal(2+DIJ(p))); Vec(serlaplace(p))} \\ Andrew Howroyd, Sep 19 2018
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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