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a(n) = (A013967(n) - A037945(n))/174611.
7

%I #27 Aug 21 2018 05:55:18

%S 0,3,6656,1574235,109234176,3489819540,65281655808,825351571995,

%T 7736349470720,57270269768634,350259092774400,1829670576438068,

%U 8372440970643456,34226453991167880,126958657929489408,432721923827171355,1369171676955783168,4056082931864408991,11330441127202890240,30026115193307387658,75874353000273633280,183636989491548765276

%N a(n) = (A013967(n) - A037945(n))/174611.

%H Seiichi Manyama, <a href="/A281788/b281788.txt">Table of n, a(n) for n = 1..10000</a>

%e a(1) = (1 - 1)/174611 = 0.

%e a(2) = (524289 - 456)/174611 = 3.

%e a(3) = (1162261468 - 50652)/174611 = 6656.

%Y Cf. A013967, A027860, A037945, A281876, A281928, A281956.

%K nonn

%O 1,2

%A _Seiichi Manyama_, Feb 03 2017