A037119 Trajectory of 3 under map n->43n+1 if n odd, n->n/2 if n even

3, 130, 65, 2796, 1398, 699, 30058, 15029, 646248, 323124, 161562, 80781, 3473584, 1736792, 868396, 434198, 217099, 9335258, 4667629, 200708048, 100354024, 50177012, 25088506, 12544253, 539402880