A026847 a(n) = T(n,m) + T(n,m+1) + ... + T(n,n), where m=[ (n+1)/2 ], T given by A026725.
1, 1, 3, 4, 12, 17, 50, 73, 211, 314, 895, 1350, 3805, 5798, 16193, 24872, 68940, 106573, 293526, 456169, 1249622, 1950697, 5318976, 8334539, 22634700, 35582783, 96296410, 151809737, 409573584, 647279131, 1741574006, 2758310121
Offset: 0