A026117 T(n,[ n/2 ]), where T is the array defined in A026105.

1, 1, 1, 2, 6, 10, 30, 50, 160, 265, 873, 1442, 4851, 7996, 27300, 44928, 155115, 254950, 887910, 1457852, 5112767, 8387170, 29582886, 48492028, 171857127, 281521541, 1001762125, 1640055250, 5856231825, 9582770760, 34320863160, 56135075250