A023417 Numerator of n*(n-3)*(3*n^2-6*n+2)/(3*(n-1)*(n-2)).

0, 52, 235, 111, 1498, 2920, 1719, 4235, 13156, 6516, 28015, 19481, 17610, 70096, 91273, 19485, 147592, 183940, 75537, 138149, 333730, 133224, 474925, 280163, 218916, 765100, 886327, 170235, 1171366