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%I #8 Jun 11 2017 19:57:07
%S 1,9,126,1920,27190,347168,3990467,42744527,440764556,4464045276,
%T 44863859589,449488519847,4498059105204,44992451829730,
%U 449969622539954,4499873022468708,44999449703306768,449997540235466340,4499988731927483569,44999947410278947807
%N Number of n-digit biquanimous numbers in base 10 not allowing leading zeros.
%C A biquanimous number (A064544) is a number whose digits can be split into two groups with equal sums.
%D _William P. Thurston_, personal communication.
%e a(1) = 1 since 0 is the only 1-digit biquam. a(2) = 9 because there are 9 2-digit biquams, namely 11, 22, 33, 44, 55, 66, 77, 88 and 99.
%Y Cf. A064544, A065023, A065025, A065024.
%K nonn,base
%O 1,2
%A _David W. Wilson_, Nov 07 2001
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