%I #9 Apr 25 2023 13:44:00
%S 1,2,4,9,20,44,96,209,456,999,2198,4854,10752,23877,53142,118517,
%T 264816,592744,1328880,2983565,6707396,15096727,34014866,76712042,
%U 173150400,391119273,884066890,1999489733,4524624820,10243526452,23200473632
%N Fourth differences of A129983.
%F a(n) = +6*a(n-1) -13*a(n-2) +12*a(n-3) -3*a(n-4) -2*a(n-5), n>5. - _R. J. Mathar_, Feb 11 2016
%Y Cf. A129983.
%K nonn,easy
%O 0,2
%A _Paul Curtz_, Jun 14 2007
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