A013977 Molien series of 4-dimensional representation of u.g.g.r. #9.

1, 10, 40, 130, 283, 513, 883, 1372, 1994, 2836, 3853, 5059, 6565, 8302, 10284, 12646, 15295, 18245, 21655, 25408, 29518, 34168, 39217, 44679, 50761, 57298, 64304, 72010, 80227, 88969, 98491, 108580