

A158600


Denominators of x^(2n1) in the series expansion of Steinhaus's approximate angle trisection.


1



3, 648, 31104, 11197440, 40633270272, 8126654054400, 367789143490560, 1265121095778828288000, 1943226003116280250368, 42473368353827268329472000, 1552949905905681518542454784000
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OFFSET

1,1


LINKS



EXAMPLE

x/3 + x^3/648 + x^5/31104 + (7*x^7)/11197440 + (443*x^9)/40633270272 + ...


CROSSREFS



KEYWORD

nonn,frac


AUTHOR



STATUS

approved



