A038742 T(n,n-5), array T as in A038738.
1, 13, 93, 486, 2080, 7756, 26193, 82263, 244906, 701075, 1950697, 5318976, 14300161, 38078927, 100753810, 265490007, 697759186, 1830912101, 4799663942, 12574986625, 32935310938, 86245253339, 225820609154
Offset: 5