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%I #13 Nov 22 2023 21:37:00
%S 1,6,29,132,589,2613,11592,51558,230181,1032060,4648150,21027765,
%T 95542878,435939525,1997076805,9183661080,42383777344,196271453865,
%U 911804206063,4248637465050,19852810349837,93012949698861,436860932671829
%N a(n) = T(2n+1,n+2), T given by A026747.
%C This appears to obey a hypergeometric 8-term recurrence with 4th-order polynomial coefficients. - _R. J. Mathar_, Nov 10 2013
%Y Cf. A026747.
%K nonn
%O 1,2
%A _Clark Kimberling_