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A032273 Shifts left 2 places under "DIJ" (bracelet, indistinct, labeled) transform. 1
1, 1, 1, 2, 5, 18, 92, 628, 5338, 53927, 627608, 8245257, 120542045, 1939926385, 34071346198, 648413562908, 13291025909948, 291921277586304, 6839533725684092, 170267930301293824, 4488220562839214752, 124883326887085347926, 3657771136861125837350 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Andrew Howroyd, Table of n, a(n) for n = 1..200

PROG

(PARI) DIJ(p)={(p + p^2/2 - log(1-p))/2}

seq(n)={my(p=x+O(x*x^(n%2))); for(i=1, n\2, p=intformal(1 + intformal(1 + DIJ(p)))); Vec(serlaplace(p))} \\ Andrew Howroyd, Sep 19 2018

CROSSREFS

Sequence in context: A099556 A057864 A320154 * A143522 A217389 A123310

Adjacent sequences:  A032270 A032271 A032272 * A032274 A032275 A032276

KEYWORD

nonn,eigen

AUTHOR

Christian G. Bower

EXTENSIONS

Terms a(21) and beyond from Andrew Howroyd, Sep 19 2018

STATUS

approved

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Last modified October 19 17:55 EDT 2018. Contains 316376 sequences. (Running on oeis4.)