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A032266
"DIJ" (bracelet, indistinct, labeled) transform of 2,2,2,2,...
2
1, 2, 6, 22, 126, 1126, 13566, 199942, 3449886, 68063206, 1510770366, 37260158662, 1010843390046, 29916558520486, 959183053952766, 33118910817698182, 1225219266296232606, 48348200298184900966, 2027102674516399784766, 89990106205541778450502
OFFSET
0,2
LINKS
C. G. Bower, Transforms (2)
FORMULA
E.g.f.: 1 + (g(x) + g(x)^2/2 - log(1-g(x)))/2 where g(x) = 2*(exp(x) - 1). - Andrew Howroyd, Sep 12 2018
PROG
(PARI) seq(n)={my(p=2*(exp(x + O(x*x^n))-1)); Vec(1 + serlaplace(p + p^2/2 - log(1-p))/2)} \\ Andrew Howroyd, Sep 12 2018
CROSSREFS
Sequence in context: A101042 A171339 A374619 * A095856 A180367 A111061
KEYWORD
nonn
EXTENSIONS
a(0)=1 prepended and terms a(18) and beyond from Andrew Howroyd, Sep 12 2018
STATUS
approved