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a(n) = n^5*H(n) where H() is the Hurwitz class number.
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%I #14 Dec 28 2017 07:12:47

%S 0,0,0,81,512,0,0,16807,32768,0,0,161051,331776,0,0,1518750,1572864,0,

%T 0,2476099,6400000,0,0,19309029,15925248,0,0,19131876,34420736,0,0,

%U 85887453,100663296,0,0,105043750,151165440,0,0,360896796,204800000,0,0,147008443

%N a(n) = n^5*H(n) where H() is the Hurwitz class number.

%H Seiichi Manyama, <a href="/A297122/b297122.txt">Table of n, a(n) for n = 0..5000</a>

%F a(n) = n^5*A259825(n)/12.

%F a(4*n+1) = a(4*n+2) = 0.

%o (PARI) {a(n) = n^5*qfbhclassno(n)}

%Y Cf. A000594, A259825, A297127.

%K nonn

%O 0,4

%A _Seiichi Manyama_, Dec 26 2017