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Ninth derivative of f_n at x=1, where f_n is the n-th of all functions that are representable as x^x^...^x with m>=1 x's and parentheses inserted in all possible ways.
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%I #8 Oct 31 2014 21:34:48

%S 0,-5112,253296,360144,6333336,3863808,6019416,3010680,56343456,

%T 27617616,14843808,26108208,13309272,39097296,18337680,14572944,

%U 7829424,293095080,139667616,70196904,101378376,55969128,55359216,31002552,111791088,56304360,40935024

%N Ninth derivative of f_n at x=1, where f_n is the n-th of all functions that are representable as x^x^...^x with m>=1 x's and parentheses inserted in all possible ways.

%C For the ordering of functions f_n see A215703.

%H Alois P. Heinz, <a href="/A215839/b215839.txt">Table of n, a(n) for n = 1..7813</a>

%p # load programs from A215703, then:

%p seq(A(9, n), n=1..100);

%Y Row n=9 of A215703.

%Y Cf. A000081, A087803.

%K sign

%O 1,2

%A _Alois P. Heinz_, Aug 24 2012